uncategorized 19 min
Best DMARC Tools for MSPs and Managed Service Providers in 2026
Quick answer: The best DMARC tools for MSPs in 2026 are DMARC Report (white-label multi-tenant with 50% partner pricing and dedicated onboarding).
Blog
Expert guides on SPF, DKIM, DMARC, and email security.
uncategorized 9 min
What Is A Spoof Call? Common Scams And Effective Solutions
Spoofing calls have emerged as a prevalent and perilous type of phone scam, deceiving individuals into believing that they are receiving legitimate calls.
uncategorized 5 min
Email deliverability rules that every organization should know about
DMARC Report Email deliverability rules that every organization should know about Play Episode Pause Episode Mute/Unmute Episode Rewind 10 Seconds 1x Fast.
uncategorized 15 min
Best DMARC Monitoring Tools for Multi-Domain Enterprises in 2026
Quick answer: The best DMARC tools for multi-domain enterprises in 2026 are DMARC Report (enterprise compliance with SLAs, DPAs, SOC-2 Type II.
uncategorized 12 min
Best Email Authentication Platforms for PCI DSS v4.0 Compliance in 2026
Quick answer: PCI DSS v4.0 Requirement 5.4.
uncategorized 13 min
How To Read DMARC Reports: Turn Complex Data Into Actionable Insights
To read DMARC reports and turn complex data into actionable insights, extract the key RUA/RUF XML fields (policy, source IPs, SPF/DKIM results, alignment.
uncategorized 8 min
Recipient Address Rejected: Access Denied – Fix SMTP 550 5.7.1 Errors
When you get a 550 5.7.1 non-delivery report, the mail system is saying “recipient address rejected” or “access denied” because the receiving server enforc
uncategorized 20 min
The State of DMARC Adoption in 2026:938,000 Domains Have DMARC Records—But Only 9% Are Actually Protected
Here is a number that should alarm every IT leader, business owner, and security professional reading this: in 2025.
uncategorized 5 min
How To Set Up SPF, DKIM, And DMARC For Your Domain?
DMARC Report How To Set Up SPF, DKIM, And DMARC For Your Domain?
Foundational 16 min
DMARC Aggregate Reports Explained: The Complete Guide to RUA Reports
Everything you need to know about DMARC aggregate reports (RUA). How to read them, what the XML fields mean, common issues, and how to turn raw data into actionable insights using DMARC Report.
Foundational 15 min
DMARC for Gmail and Google Workspace: The Complete Guide
Complete guide to configuring DMARC, SPF, and DKIM for Gmail and Google Workspace. Covers Google's sender requirements, admin console setup, troubleshooting, and ongoing monitoring.
Foundational 14 min
DMARC for Office 365: The Complete Guide to Microsoft 365 Email Authentication
Complete guide to configuring DMARC, SPF, and DKIM for Microsoft 365 (Office 365). Covers Microsoft's enforcement rules, Exchange Online setup, troubleshooting, and ongoing monitoring.
Foundational 16 min
DMARC Policy Guide: The Complete Journey from None to Quarantine to Reject
The complete guide to DMARC policy progression. Covers p=none monitoring, p=quarantine enforcement, and p=reject full protection, with timelines, decision criteria, and common mistakes at each stage.
Foundational 14 min
DMARC Setup Complete Guide: From Zero to Full Protection
The definitive guide to setting up DMARC from scratch. Covers DNS record creation, SPF and DKIM prerequisites, policy progression from p=none to p=reject, and ongoing monitoring with DMARC Report.
uncategorized 6 min
Sending Secure And Encrypted Emails In Outlook: Here’s What It Takes
DMARC Report Sending Secure And Encrypted Emails In Outlook: Here’s What It Takes Play Episode Pause Episode Mute/Unmute Episode Rewind 10 Seconds 1x Fast.
uncategorized 8 min
Piggybacking Attack: Understanding Piggybacking In Cybersecurity
In cybersecurity, piggybacking describes an adversary attaching their unauthorized activity onto an authorized channel, process, or identity to bypass controls.
uncategorized 12 min
How To Interpret DMARC Alignment Results In Aggregate And Forensic Reports?
To interpret DMARC alignment results in aggregate and forensic reports.
uncategorized 5 min
$20M Phishing Bust, Pension Scam Alert, Booking Data Breach
A phishing ring behind a $20M fraud operation has been busted. Plus, pension scam alerts and a major Booking.com data breach affecting customer records.
uncategorized 20 min
DMARC Report Analyzers in 2026: Why They Matter More Than Ever, What the Data Really Says, and How to Take Action Today
A data-driven guide backed by 37 primary-source statistics from government PDFs, academic research, industry reports, and official standards bodies.
uncategorized 7 min
Which Type Of DNS Record Identifies An Email Server? A Simple Guide
In the Domain Name System (DNS), the DNS record that identifies an email server for a domain is the MX record - short for mail exchange record.
Advanced 8 min
DMARC Enforcement Timeline: Realistic Roadmap from p=none to p=reject
A realistic DMARC enforcement timeline showing how to move from p=none to p=reject. Covers each phase, minimum timelines, common mistakes, and how monitoring dashboards track readiness.
Intermediate 10 min
How Can I Troubleshoot Gmail Bounce Messages That Mention DMARC Failures?
Fix Gmail 550 5.7.26 DMARC bounces by checking SPF/DKIM alignment and DNS records. 71% of bounces trace to SPF lookup overflows, fixable in 48 hours.
Intermediate 6 min
How to Generate a DMARC Record for Subdomains: sp= Tag Guide
Complete guide to DMARC subdomain policies. Learn how the sp= tag works, when to use dedicated subdomain records, and common patterns for marketing subdomains vs production domains.
Intermediate 5 min
How to Add a DMARC Record in Cloudflare: Step-by-Step DNS Guide
Complete walkthrough for adding a DMARC record in Cloudflare DNS. Covers TXT record setup, policy selection, reporting configuration, and verification using free tools.
Intermediate 11 min
What Are the Best Features to Look for When Choosing a DMARC Report Analyzer?
The 10 essential DMARC analyzer features -- from scalable RUA/RUF ingestion to automated policy rollout -- that cut spoofing 87% and reach p=reject in 45 days.
Intermediate 5 min
How to Check a DMARC Record Using Command Line (dig & nslookup)
Step-by-step guide to checking DMARC records from the command line using dig on Linux/macOS and nslookup on Windows. Includes output interpretation and troubleshooting.
Intermediate 3 min
Device Code Phishing, iOS 18 Relief, Global Fraud Disrupted
Microsoft device code phishing hits 15+ campaigns daily targeting hundreds of orgs, Apple patches iOS 18 DarkSword flaw, and Delhi police bust $36M fraud ring.
Foundational 8 min
What Is a DNS Server and How Does It Work as Your Internet Gateway?
A DNS server translates domain names to IP addresses in milliseconds. Learn how recursive and authoritative DNS work, plus DNSSEC, DoH, and troubleshooting.
Intermediate 4 min
DKIM Key Rotation Best Practices: Here's What Large Organizations Should Know
Large orgs should rotate DKIM keys every 3-6 months to prevent key misuse. Learn the step-by-step process to rotate keys without disrupting email delivery.
Advanced 6 min
How to Use DMARC Check APIs for Automated Domain Verification
Learn how to automate DMARC record checks using APIs. Covers DMARC Report API, code examples in curl/Python/JavaScript, and comparison of DMARC check API providers for MSPs and developers.
Intermediate 9 min
WHOIS IP Lookup and Domain WHOIS Search Tool
A WHOIS lookup reveals domain ownership, IP allocation, registration dates, and abuse contacts. Learn IP vs. domain WHOIS, RDAP, and security best practices.
Foundational 10 min
What privacy and data retention concerns should I consider with a DMARC analyzer?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
DMARC for Small Business: Why Every SMB Needs DMARC in 2026
Small businesses are the #1 target for email spoofing and phishing. DMARC protection starts at $0/month (free monitoring) and takes 5 minutes to set up. Here's why every SMB needs it and how to get started.
Intermediate 8 min
Valimail Alternatives for DMARC Management in 2026
Comparing Valimail (now DigiCert) against DMARC Report, PowerDMARC, EasyDMARC, dmarcian, and Redsift for DMARC management. Feature comparison for enterprise teams evaluating alternatives.
Foundational 7 min
How To Use Ipconfig /Flushdns To Flush Dns On Windows, Mac, Linux & Browsers
Flushing your DNS cache is one of the quickest ways to fix common internet issues like outdated website data, connection errors, or incorrect IP resolution.
Foundational 10 min
Why DMARC Fails: Complete Troubleshooting Guide (2026)
DMARC fails when both SPF and DKIM fail to align with the From header. The 5 most common causes: unauthorized third-party senders, SPF alignment mismatch, missing DKIM signatures, email forwarding, and misconfigured DNS records. Here's how to fix each one.
Foundational 6 min
How To Identify A Fake Email: Red Flags To Watch Out For
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 10 min
Microsoft DMARC Requirements (May 2025): What You Need to Know
Microsoft began enforcing DMARC, SPF, and DKIM for high-volume senders to Outlook.com, Hotmail.com, and Live.com from May 5, 2025. Non-compliant email is routed to junk, then rejected. Here's what to fix and how to verify compliance.
Foundational 5 min
VMC or CMC: Which is more fitting for BIMI
BIMI (Brand Indicators for Message Identification) displays a brand's verified logo next to authenticated emails in supporting clients.
Foundational 8 min
How can I perform a DMARC lookup to check my domain's email authentication status?
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Intermediate 8 min
EasyDMARC Alternatives for DMARC Reporting in 2026
Comparing EasyDMARC against DMARC Report, PowerDMARC, dmarcian, Valimail, Redsift, and Mimecast. Feature comparison for teams evaluating EasyDMARC alternatives.
Foundational 4 min
Steakhouse Financial Attacked, Indian Infrastructure Targeted, MEA Shipment Scams
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
What are the best practices to follow when generating a DMARC record for a high-volume mailer?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
Free DMARC Report Analyzer: Best Tools to Parse XML Reports in 2026
Compare the best free DMARC report analyzers for parsing aggregate XML reports: DMARC Report, MxToolbox, dmarcian XML converter, Zoho Toolkit, EasyDMARC, PowerDMARC, GlockApps, and parsedmarc (open source).
Foundational 7 min
What Is Baiting in Cybersecurity? Techniques, Real Examples, and Protection Strategies
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Intermediate 8 min
dmarcian Alternatives for DMARC Monitoring in 2026
Comparing dmarcian against DMARC Report, PowerDMARC, EasyDMARC, Valimail, Redsift, and Mimecast for DMARC monitoring. Feature comparison with honest use-case guidance.
Foundational 10 min
How to Read DMARC Reports: A Practical Guide to Understanding Aggregate and Forensic XML
DMARC aggregate reports are XML files that show who sends email from your domain and whether authentication passes. This guide explains every field in the XML, what the results mean, and how to act on them.
Foundational 8 min
DMARC for Google Workspace (Gmail): Complete Setup Guide (2026)
Set up DMARC for Google Workspace step by step. Configure SPF with include:spf.google.com, enable DKIM in the Google Admin console, publish your DMARC record, and monitor reports.
Foundational 6 min
Why DMARC Is Necessary For Enterprises
As of 2025, DMARC is mandatory under multiple compliance frameworks. CISA BOD 18-01 requires p=reject for US federal domains. PCI DSS v4.
Intermediate 8 min
PowerDMARC Alternatives for DMARC Reporting in 2026
Comparing PowerDMARC against DMARC Report, EasyDMARC, dmarcian, Valimail, Redsift OnDMARC, and Mimecast for DMARC reporting and monitoring. Honest feature comparison with use-case guidance.
Foundational 4 min
Ohio Staff Phished, Cybercrooks Mimic FBI, Regulator Attacked Millions
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
How to Set Up DMARC: The Complete Step-by-Step Guide (2026)
Set up DMARC in 5 minutes with this step-by-step guide. Configure SPF and DKIM first, publish your DMARC record at dmarc.yourdomain.com, start monitoring reports, and gradually enforce from p=none to p=reject.
Foundational 6 min
What Is a DNS A Record and How to Add One (Complete Guide by DMARCReport)
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
DMARC for Office 365: Complete Setup Guide (2026)
Set up DMARC for Microsoft 365 (Office 365) step by step. Configure SPF with include:spf.protection.outlook.com, enable DKIM in the admin center, publish your DMARC record, and start monitoring reports.
Foundational 9 min
Is Gmail HIPAA-compliant?
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 10 min
What are the risks of implementing strict DMARC alignment too quickly?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Intermediate 8 min
Best DMARC Reporting Tools in 2026: Honest Comparison
A side-by-side comparison of the 10 best DMARC reporting and monitoring tools in 2026 - DMARC Report, PowerDMARC, EasyDMARC, dmarcian, Valimail, Redsift OnDMARC, Mimecast, Agari, DMARCeye, and Postmark DMARC Digests.
Foundational 7 min
What Is ARP Spoofing and How to Prevent It
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 4 min
Shadow IT in the Hybrid Workplace: Hidden Risks Beyond Email
Work looks different now, doesn’t it? Employees are the reason. Recent research from Gallup shows that six in ten employees prefer a hybrid work arrangement.
Foundational 10 min
SPF vs DKIM vs DMARC: What's the Difference and How Do They Work Together?
SPF checks which servers can send email from your domain, DKIM signs messages cryptographically, and DMARC ties both together with an enforceable policy. All three are required since Google's and Yahoo's February 2024 bulk sender mandate.
Foundational 10 min
What are the best tools for checking DMARC alignment across multiple domains?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 9 min
What are the common signs that a DMARC analyzer could resolve my email spoofing problems?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 6 min
What Is Angler Phishing And How Can You Avoid It?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 5 min
Why do you need to receive DMARC emails?
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Kratos Targets Outpost24, Intuitive Data Breached, Starbucks Staff Exposed
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 5 min
How to set up DKIM in Google Workspace: A guide
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 6 min
What Is a Zero-Day Exploit and How Can You Prevent It?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 7 min
What Is a Trojan and How Does It Work?
A Cybersecurity Guide by DMARCReport The shift to mandatory email authentication in 2024-2025 was the biggest change in email security in a decade.
Foundational 7 min
What Is a Password Attack in Cyber Security?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 7 min
What Is a DMARC Failure Report? A Complete Guide by DMARCReport
DMARC failure means an email from your domain failed both SPF alignment and DKIM alignment checks.
Foundational 4 min
ChatGPT Gemini Users, Optimizely Vishing Breach, Telecom AI Protection
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 5 min
Mail Check and Web Check to No Longer Be Available as NCSC Announces Retirement
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
Phishing in 2025: A DMARCReport Perspective on Trends, Risks, and Defense
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
What are the most common reasons a DMARC DNS record fails to be recognized by receivers?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
Fake Google Security, Beware Qatar Scams, AI Targets LinkedIn
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 10 min
Beyond SPF and DKIM: Why a DMARC Check Matters More Than Ever
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 6 min
No SPF Record Found - What It Means, Why It Matters & How to Fix It
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 6 min
What Is DMARC Alignment, And How Does It Work
DMARC alignment means the domain in the From header must match the domain that passed SPF or DKIM authentication.
Foundational 11 min
How a DMARC Record Stops Phishing and Domain Abuse
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 6 min
Understanding URL Manipulation & URL Rewriting – A DMARCReport Guide
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Uniswap Scam Ads, Meta Ads Malicious, ATM Jackpotting Surge
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 10 min
DMARC Report Monitoring Made Simple for Growing Businesses
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 7 min
What Is an SOA Record in DNS? A Complete Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
550 From Address Violates UsernameCaseMapped Policy: What It Really Means (And How to Fix It Fast)
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 9 min
Why should organizations consider deploying a DMARC analyzer before enforcing a DMARC policy?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
How to Fix Gmail DMARC Errors and Improve Email Authentication
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 6 min
What Is Dumpster Diving in Cybersecurity?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 10 min
How to Safeguard Your Domain Reputation Using DMARC Authentication
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 7 min
CSA Cyber Essentials Mark Now Requires DMARC: A Complete Guide
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
How to Check a Link for Phishing - by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
Scan Carefully First, Education Under Threat, AI Phishing Surge
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 11 min
Which reporting formats and tools are best for analyzing DMARC alignment reports?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 6 min
Types of Phishing Domains Every Security Team Should Blacklist
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 6 min
Understanding the Top 8 Most Common DNS Record Types - A Comprehensive Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
What does an 'invalid DKIM signature' result mean when shown by a checker?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 11 min
Why are DKIM keys important for email deliverability and anti-spoofing?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 4 min
Commission MDM Breach, Singapore Cyber Alliance, Senegal DAF Breach
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
When should I implement DKIM if I already have SPF and DMARC configured?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 6 min
Tools Used During a DDoS Attack - A Comprehensive Guide
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 11 min
How does a DKIM DNS record protect my domain from email spoofing?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 6 min
The History of Email: From ARPANET to Modern Secure Communication
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 10 min
How does DKIM verification differ from SPF and DMARC in protecting email?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
What is the difference between a DKIM selector and a domain when checking DKIM?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 10 min
Which DNS providers make it easiest to add a DMARC record?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
PDF Dropbox Phishing, ShinyHunters MFA Bypass, Signal Journalist Targeting
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Mastering Mailchimp Email Authentication: A Complete Step-by-Step Guide
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 6 min
Email guidelines and requirements for e-commerce platforms
The shift to mandatory email authentication in 2024-2025 was the biggest change in email security in a decade, says Brad Slavin, General Manager of DuoCircle.
Foundational 11 min
What are common issues revealed by DMARC aggregate reports and how should I prioritize them?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 6 min
Improvements to Domain Scanner: Streamlining Your DMARC Journey
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
What are common signs that indicate my domain has no DMARC record published?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
Where should I publish my DMARC record in my domain's DNS?
at the host dmarc.yourdomain (for example, dmarc.example.com) in your authoritative DNS, and optionally at dmarc.sub.
Foundational 6 min
A Complete Guide from DMARCReport: How to Identify and Safely Check Suspicious Links
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 7 min
What is Doxxing and How to Prevent it
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 10 min
What are common mistakes people make when setting up DKIM TXT records?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 5 min
How to Detect Honey Trap Scams Online
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 4 min
Sandworm Targets Poland, Pwn2Own Vehicle Hacks, Energy Firms Targeted
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 5 min
How to Create a TXT Record and Add It to DNS
In today’s digital world, websites and email domains rely on the Domain Name System (DNS) to connect infrastructure, prove ownership, and secure communications.
Foundational 6 min
The Complete DMARCReport Guide: Configuring DKIM with OpenDKIM on Your Postfix Mail Server
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
How does a required DKIM selector improve email security and deliverability?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 4 min
The role of DKIM public and private keys in email security
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 5 min
Network Security Risks Facing Consumers and Businesses
Small businesses face a harsh reality: 79% have experienced at least one cyberattack in the past five years.
Foundational 6 min
How to Conduct an Email Investigation - A Comprehensive Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
ChatGPT data risks, Fortinet faces setbacks, M&S CTO Resigns
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 10 min
Why should a business consider using custom DKIM for its email sending?
A business should use custom DKIM because it provides domain-aligned authentication that boosts deliverability and brand trust.
Foundational 5 min
How to Tell if a Website Is Secure: The Ultimate Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Advanced 3 min
Good–Better–Best Pricing for MSPs: Why Tiered Packages Drive Better Decisions
Do you present prospects with multiple service options - or a single package they either accept or walk away from? Tiered pricing often sparks debate among MSPs.
Foundational 11 min
What are common signs that DKIM is not working for outgoing mail?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 6 min
What is a 550 5.7.0 local policy violation, and how to solve it?
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 7 min
How Phishing Scammers Get Your Email Address - and How DMARCReport Can Help You Stop Them
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
How can I generate and interpret DMARC aggregate reports for G Suite?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
Learning to analyze an email for security and deliverability
The most common support case we handle is 'my email is going to spam since the Google changes,' says Vasile Diaconu, Operations Lead at DuoCircle.
Intermediate 5 min
Zoho Mail SPF And DKIM Setup: A Complete Beginner-Friendly Guide
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 6 min
Why Google, Yahoo, Microsoft, and iCloud Are Enforcing Stricter Email Authentication Standards
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 10 min
How can I perform a DKIM lookup for my domain to verify my email authentication?
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 7 min
Configuring WP Mail SMTP for Authenticated WordPress Emails
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
Browser session hijacking, Email routing phishing, Instagram alert panic
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Advanced 2 min
25 practical reasons every MSP should add a pricing estimator to their website
1) Unclear pricing creates unnecessary stress When buyers can’t even estimate affordability, anxiety replaces curiosity.
Advanced 3 min
Why Some MSPs Keep Growing While Others Stall: 5 Behavioural Differences That Matter
The divide between MSPs that grow year after year and those that plateau is getting wider.
Advanced 4 min
A Practical DMARC Guide for MSPs: Securing Client Email and Building a Scalable Managed Service
Email continues to be one of the easiest ways for attackers to reach businesses.
Foundational 1 min
We are G2 Winter 2026 Leader for DMARC Software
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
How to Add a DKIM Record to Cloudflare - A Complete Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Intermediate 6 min
The Definitive Guide To Configuring SPF and DKIM for Salsa Labs
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 5 min
How a DKIM Replay Attack Successfully Spoofed Google - A Deep Dive
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 9 min
How can a DMARC Analyzer help reduce phishing emails sent from my domain?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 5 min
FreshMail DKIM & SPF Setup - A Complete Guide
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 11 min
What is a DMARC record and why does it matter for my email security?
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 3 min
Cyberattack Shuts School, Cyber Scam Thwarted, JLR Faces Losses
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 9 min
What Are The Best Practices For Making DMARC Work With Cloud Email Providers?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 6 min
How to Fix “External Verification Failure” - A Complete Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
Understanding Proofpoint’s Inbound DMARC Handling - A DMARCReport Analysis
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
How can I verify that my DKIM signing is properly aligned with DMARC for Gmail?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
What Are Best Practices For Securing Access And Protecting Data When Using A Free DMARC Analyzer?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 6 min
Everything You Need to Know About GPS Spoofing
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 12 min
Setting Up DMARC for Stronger Email Authentication and Trust
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 10 min
How Can I Reduce The Risk Of Blocking Legitimate Mail When Enforcing A Strict DMARC TXT Record?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
Ultimate DreamHost DMARC Setup Guide - By DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
QR Phishing Surges, Sentinel Targets Cybercrime, Ghanaian Bank Ransomware
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Email List Validation: The Essential Guide for Modern Email Marketers
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 6 min
Email-Borne Insurance Scams: A Complete Guide to Understanding, Preventing & Securing Your Domain
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
How to set up SPF and DKIM for Autotask
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 4 min
France Post Targeted, Romanian Waters Attacked, WhatsApp GhostPairing Threat
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
DMARC: A Comprehensive Guide to Protect Your Domain - by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 6 min
Understanding DMARC RFC: A Comprehensive Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
How long after publishing a DMARC DNS record should I expect to see effects on delivery?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
What Are The Best Tools For Validating And Analyzing A DMARC Record Example?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
How Can A DMARC Report Analyzer Help Reduce Phishing And Spoofing Incidents?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
Why Is RUA Important For Monitoring Email Authentication Issues?
RUA (DMARC aggregate) reporting is important because it gives domain owners daily, privacy-safe.
Foundational 10 min
Why does Gmail reject or mark my messages as spam when my DMARC policy is strict?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
How to maintain a good email sender reputation in 2026
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 4 min
New ClickFix Scam, Dental Practice Banned, UK MPs Targeted
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 6 min
DDoS vs DoS Attacks: A Complete Guide from DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 7 min
Business Email Compromise vs Phishing Attacks - A Deep Dive by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
How can DMARC improve email deliverability and reduce phishing risks?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 9 min
How Can I Verify If My DMARC Record Is Using SPF Or DKIM Alignment?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
Data Leak vs. Data Breach - A DMARCReport Perspective
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
How can I create a DMARC record for my domain to stop email spoofing?
Creating a DMARC record takes 5 minutes: publish a DNS TXT record at dmarc.yourdomain.
Foundational 12 min
Can I Use A DMARC Record To Block Phishing From Lookalike Subdomains?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 9 min
CNAME vs ALIAS Records - A Guide by DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 7 min
CNAME vs A Record: What Every Domain Owner Should Know
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 5 min
What are the privacy concerns associated with DMARC reports, and how can you address them?
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Foundational 14 min
Can DMARC Reports Help Me Detect Spoofing And Phishing Attempts?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Manufacturers Most Targeted, AI Operational Advisory, Google Apple Warning
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 12 min
How can I implement DMARC for multiple domains and subdomains?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
BIMI, CMC and Google: How DMARCReport Sees This Transform the Email Landscape
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 7 min
Pros and Cons of Using Third-Party Email Services for Small Businesses
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 14 min
How can I use DMARC Analyzer to detect if my domain is being spoofed?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 5 min
Barracuda SPF & DKIM Configuration - A DMARCReport Guide
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 15 min
Does forwarding mailers affect DMARC alignment and how to mitigate?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
Microsoft Halts Phishing, Calendly Invite Danger, OpenAI Security Incident
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 8 min
A Records Vs. Alias Records - A Guide By DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 6 min
What causes DMARC false positives, and how can you fix them?
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 15 min
Best Tools For Bulk DMARC Lookup Across Hundreds Of Domains?
The best tools for bulk DMARC lookup across hundreds of domains are a mix of commercial SaaS platforms (e.g.
Foundational 7 min
Benefits And Risks Of Penetration Testing - By DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 10 min
How Does DMARC Analyzer Compare To Mxtoolbox, Valimail, And Dmarcian For Easing Dmarc Setup?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 9 min
Answering Your Webinar Questions: Email Security - From The Desk Of DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 12 min
Best DMARC Checker Tools Comparing Dmarcian, Mxtoolbox, And Proofpoint
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
How to Secure Your iCloud Email with DMARC
Email spoofing remains one of the common tricks used to impersonate trusted senders, targeting iCloud users.
Foundational 7 min
A-Records Vs. Aaaa-Records: What You Need To Know
If you’ve ever managed a domain or hosted a website, you’ve likely encountered DNS records - but not all DNS records are created equal.
Foundational 10 min
Best Tools For Generating DMARC Records For Small Businesses With Minimal It Staff?
For small businesses with minimal IT staff, the best DMARC record generators are GUI-based wizards - especially DMARC Report’s DMARC Wizard - alongside dmarcian.
Foundational 5 min
What’s PII and how to protect it in emails?
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 7 min
DMARCReport Breaks Down the 6 Most Critical Data Loss Prevention Strategies
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
US Finance Breach, Disappointing Black Friday, JLR Cyber Incident
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 7 min
12 Common Types Of DDOS Attacks - Explained By DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
10 Critical Learnings From Verizon’s 2021 DBIR - A DMARCReport Perspective
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 8 min
10 Smart Strategies To Safeguard Your Data - Insights From DMARCReport
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
DMARC Aggregate Reports: GDPR/CCPA Compliance Checklist
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
5 Best Practices For Securing Your Security Token Service (Sts) Authentication
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
DMARC: Your silent shield in a billion-dollar battle against phishing
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Secure Passkey Protection, Dismantling Lighthouse Phishing, Manufacturers Need Protection
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 12 min
10 Reasons SPF Filtering Is Critical For Email Security
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 11 min
7 Easy Steps To Verify An Spf Record Using Nslookup Properly
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 12 min
10 DNS Blacklist Insights That Improve Email Security And Deliverability Fast
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 4 min
Delhi Airport Cyberattack, Clickfix Phishing-Purerat, Linkedin Targeting-Threats
Delhi Airport Cyberattack, Clickfix Phishing-Purerat, Linkedin Targeting-Threats Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin.
Foundational 4 min
Consequences of poor DMARC hygiene
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 10 min
10 Ways Modern SPF Software Prevents Brand Spoofing And Phishing
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Foundational 12 min
10 Email Spoofing Detection Tools That Dramatically Improve Brand Protection
Email spoofing is trivially easy without DMARC enforcement - any attacker can forge the From header to make an email appear to come from your domain.
Foundational 4 min
Ex-cybersecurity Hackers Exposed, Norwegian Bus Vulnerability, LinkedIn Credential Scam
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 11 min
Improve Deliverability Using Email DMARC Check Plus Robust SPF And DKIM Alignment
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
Ensure Email Authentication With A Domain Health Report Featuring Advanced Dmarc Insights
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
What do enterprise email and messaging platforms need for cybersecurity compliance?
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
How Verified Email and SMS Improve Customer Trust and Engagement
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
M&S-TCS breach, 183M passwords leaked, AI phishing risk
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 11 min
Understanding DKIM Subdomains: Strengthen Your Email Authentication For Better Domain Protection
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 11 min
Unlock Actionable Insights Hidden In Emails Through Powerful Ai Email Analyzer Technology
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
Email Security Meets Cybersecurity. Understanding the Role of DMARC Reports
Email has become an integral part of our everyday lives. Both personal and professional.
Foundational 12 min
The Ultimate Guide To Understanding And Running A Dmarc Email Test
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
SPF format checker; Do’s and don’ts for email authentication
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
CSC Cyber Warning, Oman Strengthens Cybersecurity, Founder Suffers Phishing
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
Deliverability Starts Before DMARC: Use Verified Contact Data and Custom Domains
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
How can the government and public sector agencies protect their domains with DMARC?
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 10 min
How To Configure SPF Record For Gmail To Prevent Email Spoofing
Configuring an SPF (Sender Policy Framework) record for Gmail is one of the most effective ways to protect your domain from email spoofing and phishing attacks.
Foundational 4 min
Cybersecurity Infrastructure Gaps, UK Cyber Surge, Qantas Data Breach
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 11 min
Discover How An Email Ip Reputation Checker Improves Deliverability And Sender Trust
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
Japan Brewery Hacked, Brazil Whatsapp Malware, Teens Target Nursery
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 11 min
Mta Online Email: Enhance Professional Communication And Protect Your Data Easily
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 8 min
How does DMARC prevent Vendor Email Compromise?
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
Enhance Email Authentication Using SPF Outlook For Safer Professional Communication
In today’s digital business landscape, email remains a primary communication channel - but also a frequent target for cyber threats such as phishing and spoofing.
Foundational 11 min
Safe Email Checker: Verify Emails Before Sending To Avoid Spam
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 5 min
US Cyber Weakened, China Implements Reporting, Volvo Hit Ransomware
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 7 min
Top 10 Identity Verification Platforms
It’s hard to imagine a business operating in a digital environment that lacks security and trust.
Foundational 4 min
Japan’s Cybersecurity Crisis, Airports Face Ransomware, Pennsylvania Revenue Alert
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 12 min
Adding SPF Records To Your Domain For Outlook Email Authentication
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 5 min
The journey of an Email: From sender’s domain to recipient’s inbox!
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 10 min
How To Use Mxtoolbox Dmarc Analyzer For Effective Email Security
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 11 min
Top 5 DMARC MTA Solutions to Enhance Your Email Security
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
Fixing dangling DMARC record issues
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 11 min
Step-By-Step Guide To Configuring Google Apps SPF Records
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 4 min
Deepfake Attack Victim, Gucci Parent Breached, Shipping Industry Targeted
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
Best Practices For Using Dmarc Report Readers To Protect Your Domain
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
How to Stay One Step Ahead in the Cybersecurity Race
In 2025, cybersecurity no longer feels like an IT side project.
Foundational 10 min
Complete Guide To Domain Name Analyzer Features And How They Help Your Seo
A domain name analyzer is an essential tool for website owners, SEO professionals, and domain investors seeking to optimize their online presence.
Foundational 5 min
France’s Laposte.net announced new email rules in 2025; What businesses should know
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 11 min
Complete Guide To Microsoft Technology Associate (MTA) Security Fundamentals
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
AI Scam Alert, Federal Cuts Vulnerability, American Tire Cyberattack
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
Understanding Dmarc Analysis: Protect Your Domain From Phishing
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 7 min
How to Implement DNSSEC: Best Practices and Setup Tips
DNS Security Extensions (DNSSEC) play a crucial role in strengthening the security of the Domain Name System, which serves as the backbone of the internet.
Foundational 4 min
Jaguar Cyber Breach, Cybersecurity Geolocation Link, India Cybersecurity Burnout
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
What is identifier misbinding, and how does DMARC fix it?
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
The Hidden Risks in Your Inbox and How to Stay Safe
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 11 min
Amazon SES SPF Record Explained: Best Practices For Email Authentication
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 11 min
Understanding SPF Fail Handling In Exchange Online: Tips And Best Practices
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 12 min
Improve Your Domain’s Email Security By Checking Dmarc Compliance
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Africa Fights Cybercrime, Attention Farmers Customers, Apple Prevents Threats
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
How To Set Up And Configure Microsoft 365 SPF Records For Email Security
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 5 min
Cybersecurity Basics for College Students: Understanding DMARC, SPF, and DKIM
In today's digital age, cybersecurity has become a vital aspect of our everyday lives. For college students, it’s especially crucial.
Foundational 6 min
DMARC- The secret weapon for SOC 2 and ISO 27001 compliance
DMARC- The secret weapon for SOC 2 and ISO 27001 compliance DMARC is the only email authentication protocol that gives you both enforcement and visibility.
Foundational 3 min
Proxy Observability: A Data-Led Playbook For Reliable Web Scraping
Web scraping at scale is not a guessing game. Reliability hinges on measurable signals, not folklore or trial-and-error.
Foundational 4 min
Cyberattacks have become mainstream businesses in 2025 - AI and ransomware trends are the biggest contributors
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
McD Outlets Unsafe, Allianz Data Breached, Polish Plant Attacked
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Authenticate or Die: How Email Protocols Make or Break Your Marketing
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 11 min
Setting Up SPF, DKIM, And DMARC Records For Enhanced Security In Exchange Server
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 8 min
Maximize Email Deliverability With Trusted Email Lookup & Verification Apis
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
UAE Cybersecurity Education, DOGE Security Exposed, Son Prevents Attack
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
What is a DKIM record? A complete guide to setup, mistakes, and DMARC alignment
DKIM is the authentication protocol that survives email forwarding, says Brad Slavin, General Manager of DuoCircle.
Foundational 13 min
Authoritative vs Recursive DNS: Understanding the Key Differences
Navigating the internet is like exploring a vast city filled with countless destinations, but what happens when you don't have a map?
Foundational 4 min
Dell Laptop Vulnerable, Zero-Trust Migration Pending, WSU Threat Surge
Dell Laptop Vulnerable, Zero-Trust Migration Pending, WSU Threat Surge Dell Laptop Vulnerable, Zero-Trust Migration Pending.
Foundational 16 min
How to Add HubSpot SPF, DMARC, and DKIM for Email Authentication
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
Essential Tools for Verifying and Configuring Proxy Connections
Whether you're managing multiple social media accounts, scraping data ethically, or just looking to enhance your privacy online.
Foundational 3 min
Instant Proxy Diagnostics for Real-Time Access Evaluation
In today’s digital-first world, individuals and businesses alike demand uninterrupted access to online resources.
Foundational 15 min
Stop Email CEO Fraud: Essential Tips for Prevention and Security
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
The Hidden Costs of Unreliable Data Access: How ISP Proxy Infrastructure Saves Research Budgets
You can have the smartest analysts and the greatest strategy - but if your proxies fail on you, your entire research project can silently fall apart.
Foundational 6 min
How Proxy Servers Help Prevent Ad and Click Fraud
The internet is essentially one massive advertising billboard, and the fact that online advertising is a multi-billion-dollar industry makes the entire system.
Foundational 4 min
Why do DMARC reports have a limit of 32KB?
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Foundational 10 min
What Is a DNS PTR Record? A Complete Explanation and Guide
In the digital landscape we navigate daily, understanding the intricacies of how information gets from one point to another can feel a bit like trying to.
Foundational 5 min
Maritime Cybersecurity Policies, Amazon Phishing Alert, Red Sea Spoofing
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
WordPress Email Marketing: How to Begin an Email Campaign
Email marketing offers a steady way to reach people who visit your site. WordPress makes it simple to begin if you know what steps matter most.
Foundational 5 min
Is DMARCbis a game-changer or just an upgrade to DMARC?
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 10 min
What is a DNS CNAME Record? Understanding Its Usage and Configuration
In a digital world where every click counts, understanding the tools behind our online experiences is essential.
Foundational 4 min
Mcdonald’s Application Tips, Ingram Micro Recovers,Gemini Email Exploit
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 9 min
What Is Typosquatting? Understanding Its Definition and Risks
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 10 min
Google Security Alerts: How to Protect Your Account from Phishing
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 10 min
What Is Phone Number Spoofing? Understanding Techniques and Risks
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 4 min
SK Telecom Breach, Massive Ransomware Outage, Beware AI Links
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 9 min
How to Prevent SQL Injection Attacks: Best Practices for Secure Applications
SQL Injection (SQLi) is a cyber vulnerability that arises when attackers manipulate SQL queries by injecting malicious code into input fields intended for user.
Foundational 5 min
Sending official emails in New Zealand? You’ll need DMARC now
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 10 min
What Is a PTR Record? Understanding Its Importance in DNS Lookup
The engineering challenge with DMARC at scale is report volume, not complexity, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
PayPal Email Scam, BreachForums Operators Detained, Hackers Target Airlines
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 13 min
Email Salting Attacks: How They Work and Prevention Techniques
In the realm of cyber threats, email salting attacks have emerged as a stealthy and sophisticated tactic that can catch even the tech-savviest among us off.
Foundational 8 min
Decoding the ubiquity of email authentication: DMARC regulations from across the world
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 13 min
Mail Header Analyzer: The Ultimate Tool for Email Security and Spam Detection
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
Rising African Cybercrime, Salt Typhoon Strikes, Nucor Files Again
Rising African Cybercrime, Salt Typhoon Strikes, Nucor Files Again From a product strategy perspective.
Foundational 13 min
What is AAAA DNS? Understanding IPv6 Records and Their Importance
In the ever-evolving landscape of the internet, the way we connect and communicate is rapidly changing.
Foundational 5 min
How does BIMI build psychological trust with recipients?
The shift to mandatory email authentication in 2024-2025 was the biggest change in email security in a decade, says Brad Slavin, General Manager of DuoCircle.
Foundational 11 min
How to Recall Email in Outlook: Tips and Instructions for Success
In our increasingly digital world, email remains a staple of communication, whether for work or personal matters.
Foundational 5 min
Humanitarian Cyber Surge, Unsubscribe Scam Alert, SEO Boosts Phishing
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
Emerging cybersecurity threats that you should know about in 2025
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 14 min
Session Hijacking: Understanding Risks and Prevention Techniques
In the vast digital landscape we navigate daily, there's a lurking menace that often goes unnoticed - session hijacking.
Foundational 14 min
How To Stop Spoofing Emails: Effective Security Techniques To Prevent Phishing
Email spoofing is trivially easy without DMARC enforcement - any attacker can forge the From header to make an email appear to come from your domain.
Foundational 4 min
Cybersecurity Orders Reversed, OpenAI blocks Attackers, Africa Boosts Training
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
DMV Phishing Alert, FTSE Spoofing Risk, Victoria’s Secret Breached
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 14 min
What Is a DNS AAAA Record? An In-Depth Explanation
In the vast landscape of the internet, have you ever wondered how your favorite websites know where to find you?
Foundational 5 min
DKIM in TXT or CNAME record - which one is better?
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 15 min
Email Header Analyzer: Effective Software to Detect Spam
In a world where emails pop into our inboxes like unsolicited party invites, understanding how to sift through them effectively is more crucial than ever.
Foundational 15 min
How to Detect Fake Email Addresses: Tips to Identify Scams
Every day, our inboxes are filled with emails that promise the world, but unfortunately, many of them could be traps waiting to snare the unsuspecting.
Foundational 4 min
Adidas Data Breach, Whatsapp Image Threat, Silent Ransom Vishing
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 14 min
What Is Ping Spoofing? Understanding the Technique and Its Impact on Network Security
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 1 min
Another win for DMARC Report! We've been honored by Capterra
🔥 Another win for DMARC Report! We've been honored by Capterra with the 2025 Best Ease of Use and Best Value badges - proof that simplicity and affordabi
Foundational 1 min
DMARC Report recognized by GetApp
🎉 Big News! DMARC Report has been recognized by GetApp with the Best Functionality & Features Badge for 2025!
Foundational 7 min
AI-powered phishing in 2025: how intelligent attacks are outsmarting cybersecurity defenses
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Foundational 13 min
Have I Been Pwned? A Simple Way to Check for Data Breaches
In our digital lives, keeping track of personal information may feel like running a marathon with no finish line.
Foundational 11 min
DMARC XML Analyzer: Analyze Your Email Security Reports Effectively
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Layoffs Threaten Cybersecurity, M&S Data Breach, Hackers Nabbed Globally
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Masimo Operations Delayed, Britain Cyberattack Surge, Scotland Co-op Hacked
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 7 min
A guide on securing your subscription business from cyber threats in 2025?
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
BEC Targets Renters, Deadline ID Scam, UK Mobile Scams
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 6 min
Why the Payment Card Industry (PCI) encourages SPF, DKIM, and DMARC
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 11 min
DMARC Forensic Report: Essential Insights for Email Security
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Verified Email Threat, Costly Ransomware Attacks, Deepfake Audio Shock
Hey people! Hope you all are safe and sound, away from the clutches of the cybercrooks. It is week 4, and we are here with the 4th cyber bulletin of the month.
Foundational 5 min
The Hidden Costs of Poor Email Deliverability for SaaS Businesses
Poor email deliverability quietly drains SaaS growth.
Foundational 6 min
Why email security matters - And how to get it right?
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Ministers Face Scams, Conduent Data Breached, Uk Faces Threats
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Does SPF hold importance in the DKIM-DMARC era?
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 15 min
DKIM TXT Records: How to Properly Configure Your Email Authentication
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 15 min
DKIM Examples: A Comprehensive Guide to Email Configuration
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 6 min
How can you strictly enforce DMARC for visibility and control?
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Linkedin Phishing Alert, AI Targets Inboxes, Ransomware Hits Sensata
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Microsoft Outlook steps up email security with new policies
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 8 min
Major risks of sharing email accounts
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 4 min
Why is it unsafe to send sensitive information via email?
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 14 min
DMARC Report Analyzer for Windows: Top Tools to Boost Your Email Security
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Phishing links are scarier than malicious email attachments
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Browser ransomware threat, Interpol arrests 306, Password hacking escalates
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
DeepSeek targets Google, South Africa Cyberattack, FBI Warns Scams
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 13 min
DMARC Report Analyzer Open Source: Analyze and Improve Your Email Security
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Setting DKIM for Microsoft 365 domain
Microsoft highly encourages its users to deploy DKIM in tandem with SPF and DMARC for holistic and efficient protection against phishing and spoofing of emails.
Foundational 5 min
No-reply emails: a red flag for phishing and customer distrust
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 6 min
From DKIM to DKIM2: How email authentication is evolving
DKIM is the authentication protocol that survives email forwarding, says Brad Slavin, General Manager of DuoCircle.
Foundational 14 min
How to Create a DMARC Record in GoDaddy for Enhanced Email Security
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
7 Best Practices for Writing Secure Emails to Avoid Phishing Attacks
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Foundational 5 min
Booking Scam Alert, Fortinet LockBit Attack, Abu Dhabi Guidelines
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 14 min
Setting Up DMARC: A Complete Guide to Email Protection
To set up DMARC for your domain, first, ensure that you have SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) records configured.
Foundational 3 min
Why is sending emails without DKIM a risk you can’t afford?
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 9 min
DKIM Best Practices: Essential Guidelines for Email Authentication
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
Cyberattack disrupts X, AI Empowers Cybercrime, Ford Airbus Hacked
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
The DMARC ‘fo’ tag options and their ideal use cases
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 10 min
Can You Have Multiple DMARC Records? A Complete Guide for Domain Configuration
One Domain, One DMARC Record: Overview DMARC, or Domain-based Message Authentication, Reporting & Conformance.
Foundational 13 min
Bluehost Verification: A Step-by-Step Guide to Account Setup
Setting up a new website can feel overwhelming, especially when it comes to navigating account verification with platforms like Bluehost.
Foundational 4 min
Saudi construction targeted, Latin America vulnerable, Middle East secures
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 12 min
DKIM Setup on Bluehost: A Step-by-Step Email Configuration Guide
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 14 min
Add TXT Record on Namecheap: A Complete DNS Guide
Adding a TXT record in Namecheap might sound complicated, but it plays a crucial role in managing your domain’s online presence.
Foundational 17 min
How To Add Your Domain To HostGator: A Step-by-Step Guide
Adding a domain to HostGator can feel like a daunting task, especially if you’re new to web hosting. But don’t worry!
Foundational 15 min
No DMARC Record Found? Here's How to Fix Your Domain's Email Security
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
Car Cameras Hackable, UK Water Breach, Thailand Frees Captives
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 8 min
Top 8 email security protocols that can shield your brand’s reputation
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 3 min
How does DMARC compensate for SPF drawbacks?
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
DeepSeek lacks security, Japan strengthens cybersecurity, Trump’s Cyber Nominee
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
What is the difference between Sender Policy Framework and Sender ID?
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 6 min
How does DMARC shield your business from different email-based cyber threats?
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Apple Fixes USB, Embargo Leaks Data, Politics Hinder Cybersecurity
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
Learning to find the source owner using the ‘envelope_to’ domain
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
Cybercriminals Target X, Nigeria Fights Cyberattacks, Threat Actors Attack
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
What problems trigger an SPF record to break and how do you fix them?
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
RFC 5322 laid down email security specifications for Sender Policy Framework
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 5 min
Lynx Ransomware Professionalized, Super Bowl Cyberthreats, AI Chatbot Cybercrime
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
What is a DKIM signature, and how does it help filter emails?
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 6 min
Setting Apple Business Mail using Apple Business Connect
The shift to mandatory email authentication in 2024-2025 was the biggest change in email security in a decade, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Steps to add SPF, DKIM, and DMARC records to AWS DNS-Route 53
The 10-lookup limit is a resource protection mechanism in RFC 7208, not a security feature, says Adam Lundrigan, CTO of DuoCircle.
Foundational 4 min
Trump fires investigators, Microsoft 365 Threats, US Cybersecurity Insufficient
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Yahoo Japan rings in the new year with DMARC adoption
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 4 min
Google accounts hijacked, Stealers infiltrate YouTube,Woman loses $850K
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 8 min
What best practices should you follow for seamless Privileged Account and Session Management?
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
Packers Fans Scammed, Pentagon Bans Tencent, Telecom Namibia Targeted
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 3 min
Setting SPF, DKIM, and DMARC for Omnisend
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Water Sector Targeted, Essential Ai Security, Trump Cybersecurity Shifts
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
LockBit ransomware dismantled, Google tricked AI, Email platform threatened
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Europol DDoS Operation, Texas Data Breach, Dubai Police Impersonated
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Why do traditional cybersecurity solutions fall short against modern, sophisticated cyberattacks?
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Middlesbrough Council Targeted, Interpol Cyber Operation, Unaware Employees Risk
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 8 min
9 technologies to protect your emails from cyber actors
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Getting started with BIMI for Zoho Mail
BIMI (Brand Indicators for Message Identification) displays a brand's verified logo next to authenticated emails in supporting clients.
Foundational 4 min
Cybercrime Network Dismantled, CBI Investigates Cyberfraud, CISA Stops Hacking
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
5 key contributors to DMARC’s development
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 4 min
Cybersecurity threatens water, Android users warned, Mexico faces cyberattacks
It’s already week four of November, and the holidays are just around the corner. Leniency at workplaces is already resulting in increased cases of cyberattacks.
Foundational 5 min
Understanding the gaps in the global cybersecurity landscape in 2024
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 4 min
Akira flaunts victims, Idaho targets orthodontist, AI granny protects
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Vendor Causes Breach, Texas Supplier Hacked, Nokia Investigates Breach
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 8 min
What is DMARC compliance and how can you achieve it?
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 4 min
Snowflake Attacker Arrested, Hellcat Targets Schneider, Whistleblower Granted Relief
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Insufficient Cybersecurity Training, FakeCall Malware Threat, Women Duped Airport
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
What is the right way to split DKIM keys?
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
This is the season of scams: 2024 holiday guide to spotting phishing attacks
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Senate Campaigns Unprotected, Enterprise SaaS Risks, US launches encryption
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 5 min
What is DMARC’s Subdomain Policy (sp) tag and how does it work?
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 5 min
Things Financial Institutions Need to Know About Spoofing
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Pokémon Company Hacked, American Water Restored, Schools increasingly targeted
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 7 min
4 sectors that need email authentication the most and why
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Malware terrorizes Linux, Cyberattack disrupts water, Cyber incidents surge
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
Understanding the pct tag (percentage tag) in DMARC
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Manufacturing industries targeted, Senator Victimizes Deepfake ,Kia owners beware
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
How can MFA and DMARC secure your online presence?
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
Best practices for forwarding emails to Gmail users
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Kansas Water Cyberattack, Moneygram Halts Operations, Telegram Shares Data
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Phishing and Spoofing- Two emerging cyberattack trends in 2024
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
How to configure SPF, DKIM, and DMARC records for Brevo?
DKIM is the authentication protocol that survives email forwarding, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Chrome Password Risk, Tycoon Sanctioned Cyber, Election Panic Rumors
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Turkish SMBs Targeted, Cyber Expert Shortage, Singapore's Chinese Syndicate
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Understanding TLS downgrade attacks and how MTA-STS mitigates them
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Google’s guidelines to send emails to Gmail users
Have you ever wondered why even legitimate emails sent by you to Gmail recipients don’t reach their inboxes?
Foundational 6 min
Role of DMARC in detecting and preventing shadow IT
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
FBI Warns Hackers, Halliburton Cyber Threats, TfL Targeted Threat
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Security requirements for Gmail
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 3 min
DMARC reporting’s three-step checklist
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
India Cyberattack Surge, Remote Work Risks, Patelco Data Breach
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Social engineering attacks- techniques and prevention
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 3 min
Key aspects of DMARC interoperability
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Chinese Router Controversy, Toyota Data Breach, Iran's Trump Involvement
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
What is the difference between anti-spam and DMARC?
We understand that spam emails are one of the most annoying things that you have to deal with on a daily basis.
Intermediate 5 min
Doing Sender Policy Framework (SPF) delegation the right way
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 4 min
Massive Classroom Breach, Cybercrime Treaty Approved, Scammer Targets Journalist
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
A sneak peek into DMARC adoption in Qatar
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Intermediate 3 min
Setting DKIM keys for Salesforce
DKIM is the authentication protocol that survives email forwarding, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Facebook Page Hijacking, $75m Ransom Payment, And State-Sponsored Spyware
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
A snapshot of ransomware evolution
Ransomware is a cyberattack attempted using a malware that intends to block access to a computer system or file.
Foundational 5 min
Creating and managing Verified Mark Certificates (VMC) for BIMI
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
China Targets India, Security Firm Mistake, Zeus Hacks Olympics
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Your domain needs SEGs and email authentication, both
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
A guide to enhancing email delivery with Google Postmaster
The most common support case we handle is 'my email is going to spam since the Google changes,' says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Buggy CrowdStrike Crash, Dating Apps Vulnerabilities, Ukraine ICS Malware
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
The intersection of DORA and DMARC
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Intermediate 3 min
Understanding DKIM: syntax, tags, and email
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 4 min
Banks Drop OTPs, Major Cyber Heist, Spying Spouses Arrested
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
What is MTA-STS and why do you need it to improve email security?
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Intermediate 4 min
Does DKIM break for forwarded emails and mailing lists?
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Ambient Light Spying, Cybersecurity Prices Drop, Euro 2024 Threats
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 5 min
Understanding credential phishing and the role of DMARC in defense
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Everything you should know about the recent ban on Kaspersky Antivirus in the US
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 4 min
Kenya-US Cybersecurity Collaboration, Papua New Guinea Data Security, Child hospital Ransomware
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
7 ways admins can contribute to protecting G Suite from phishing
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 4 min
Asian Telecom Cyberattacks, Kaspersky Ban Dilemma, CDK Cyberattack Disrupts Dealerships
From a product strategy perspective, DMARC reporting is evolving from a security tool to a business intelligence platform, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Patching Versus Isolating Cybersecurity Vulnerabilities- Which is Better in 2024?
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 4 min
Swift Fan's Spending Spree, WPP CEO's Deepfake Scam, Russian Ransomware Extorts Millions!
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 5 min
How Can You Check Your Domain Reputation?
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 3 min
Gmail’s ‘Best Guess’ SPF Status- What is it and How can you avoid it?
The shift to mandatory email authentication in 2024-2025 was the biggest change in email security in a decade, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
DMARCReport Backs Up Paralympics by Working With SaaS-Provider Katana Group
San Diego, California- 13th June, 2024 DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin.
Foundational 5 min
Russian Aviation Sector Under Risk, Ransomware Attack on Synnovis, CyRC Sheds Light On EmailGPT Vulnerability!
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Intermediate 3 min
Learning to Configure SPF for Amazon SES
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Intermediate 5 min
How to Set Up DKIM in Amazon SES?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 5 min
Africa’s Low Ranking On Phishing Resilience, BBC Breach, TikTok Celeb Accounts Compromised!
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Intermediate 8 min
Decoding I-Tag DKIM Vulnerability and Its Impact on Email Deliverability and Security
The most common support case we handle is 'my email is going to spam since the Google changes,' says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
The Metamorphosis of Deception: Tracing the History of Phishing Attacks
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
A Roundup of the Top Phishing Attacks in 2024 So Far
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
What is the Role and Relevance of PTR DNS Resource Records?
The engineering challenge with DMARC at scale is report volume, not complexity, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Understanding Kimsuky's Latest Phishing Tactics: Exploiting DMARC “None” Policies
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 8 min
Decoding PCI DSS v4.0 and Enhancing Security with DMARC: A Guide
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Intermediate 5 min
How does Canonicalization prevent emails from failing DKIM checks?
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
DMARC Setup Stage 1- Preparation
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 3 min
Fixing Google Calendar Invites That Fail DMARC Checks
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 5 min
Decoding the Subtle Art of Deception: Homoglyphing and Its Role in Phishing Attacks
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
Beware of Phishing Attempts- Apple Users’ Version!
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 3 min
Microsoft Plans to Impose a Per Day Limit on Exchange Online Bulk Emails to Reduce Spam
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 4 min
DomainKeys and DKIM Are Slightly Different
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 5 min
Disabling DMARC Reports: A Guide to Streamlining Your Domain's Email Security
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Intermediate 5 min
What is a DKIM Replay Attack and How to Prevent it?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 6 min
Ensuring Easy and Secure Authentication: A Guide
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 8 min
Technical and Marketing Team’s Joint Efforts For Email Deliverability
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
Learning to Send DMARC-Compliant Emails on Behalf of Others
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 3 min
Integrating all Cybersecurity Elements for Alignment and Efficacy
The most common DMARC failure we see is alignment, not authentication, says Adam Lundrigan, CTO of DuoCircle.
Foundational 6 min
A Guide to Deploying SPF, DKIM, and DMARC Like a Pro!
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
How Will Google and Yahoo’s New Sender Requirements Impact European Businesses?
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 5 min
Creating Microsoft 365 Transport Rule to Quarantine Unauthorized Inbound Emails
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 5 min
The Cyber Threat Landscape In A Glance: 2024
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 3 min
Configuring SPF, DKIM, and DMARC For Klaviyo
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 6 min
QR Code Phishing or Quishing is on the Rise; Here’s How You Can Prevent it
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
Major Cybersecurity Trends That Will Reign in 2024
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 4 min
A Basic Guide to Email Authentication for Legal Professionals
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
How Do You Configure Third-Party Vendors to Be DMARC Compliant?
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
Reasons Why You Aren’t Receiving DMARC XML Reports
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
Phishing vs. Smishing vs. Vishing: Everything You Need to Know
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
What is the Difference Between Email Authentication and Email Encryption?
MTA-STS is the protocol most organizations forget about, says Adam Lundrigan, CTO of DuoCircle.
Foundational 4 min
Fixing DMARC Enforcement For Smaller and Emerging Brands
Compliance is driving a lot of the DMARC adoption we see, says Vasile Diaconu, Operations Lead at DuoCircle. PCI DSS v4.
Foundational 5 min
A Guide to Preventing Phishing in 2024: Insights from CSC's 2023 Report
Domain spoofing is trivially easy without DMARC enforcement, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
5 Mind-Boggling Phishing Attacks in Australia 2023!
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Foundational 4 min
Google’s New DMARC Compliance Requires You to Stop Impersonating Gmail From: Headers
Google's February 2024 requirements were a turning point, says Brad Slavin, General Manager of DuoCircle. Before that, DMARC was a recommendation.
Foundational 6 min
Why Email Marketers Should Care to Implement BIMI?
BIMI (Brand Indicators for Message Identification) displays a brand's verified logo next to authenticated emails in supporting clients.
Foundational 5 min
Everything You Need to Know About DNS Blocklist
The engineering challenge with DMARC at scale is report volume, not complexity, says Brad Slavin, General Manager of DuoCircle.
Foundational 6 min
Why DNS Matters in Email Security?
The engineering challenge with DMARC at scale is report volume, not complexity, says Brad Slavin, General Manager of DuoCircle.
Foundational 5 min
DMARC Best Practices for Domains and Subdomains
Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 5 min
Gmail and Yahoo Email Error Codes Explained
DMARC monitoring should be as routine as checking your inbox, says Adam Lundrigan, CTO of DuoCircle.
Foundational 3 min
Why Non-Profit Organizations Should Care to Deploy DMARC?
Did you know that only 1% of Non-profit organizations’ domains have the basic DMARC authentication protection in place?
Foundational 4 min
ChatGPT-Generated Phishing Emails Are Too Good to Be Ignored!
The support tickets we get after a spoofing incident all start the same way: 'we didn't know someone was sending email from our domain,' says Vasile Diaconu.
Foundational 5 min
SPF Softfail or SPF Hardfail: What’s Right for Your Domain?
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Foundational 3 min
Why Are Your Emails Getting Blocked When Sent From Your Yahoo Account?
The global email marketing market reached USD 911.3 million in 2022 and is estimated to grow at a .
Foundational 4 min
SMTP Smuggling is Allowing Email Spoofing; DMARC Prevents Such Attacks
In 2022, America’s Cybersecurity & Infrastructure Security Agency assessed federal and critical infrastructure partners.
Foundational 5 min
How to Educate or Train Employees on Cybersecurity?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 3 min
A Guide to Leveraging DMARC to Mitigate Email-Based Attacks
Let’s face it: the fear of falling prey to cyberattacks through deceptive emails is emerging at a than ever.
Foundational 3 min
How to Setup DMARC to Meet Google’s New Requirements for Bulk Senders?
Google and Yahoo have unveiled a new email authentication policy that will be effective from .
Foundational 3 min
Android Features that Protect Users from Phishing
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Foundational 5 min
The Importance of DMARC For Email Marketing and How to Get Started With it
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
Why is Email Deliverability Important for Online Businesses?
Email authentication directly impacts deliverability: Google and Yahoo's February 2024 bulk sender requirements enforce SPF + DKIM + DMARC as hard.
Foundational 4 min
Penetration Tests are Indicating Worse Cybersecurity Postures Across Globe; Phishing Attacks are Topping the List
The effectiveness of data protection measures and the utility of available patches have worsened in recent years.
Foundational 3 min
DMARC Update: RFC is Considering To Replace the ‘pct’ Tag in DMARC With ‘t=’ Tag
A change is expected in the DMARC policy settings as IETF has introduced a draft that reports replacing the ‘pct’ tag with the ‘t=’ tag to overcome some.
Foundational 7 min
Brad Slavin Presentation at MSP Global Conference 2023 | Elevating Email Security – A Comprehensive Guide to DMARC for MSPs
The MSP Global conference, held at the Nürburgring in Germany from November 14-16, 2023, was a major event in the Managed Service Provider industry.
Foundational 3 min
‘No DMARC Record Found’ Bug Bounty is Actually a Beg Bounty- Don’t Fall For it
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
What Is Cyber Threat Hunting?
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 2 min
How Gmail Users Are Likely to Get Affected By the Updated RETVec System?
Gmail has covertly introduced some updates based on the RETVec technology, which is short for Resilient & Efficient Text Vectorizer.
Foundational 6 min
A Reality Check On Email Security Threats In Healthcare!
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Intermediate 4 min
Getting Rid of Common SPF Errors for Email Security and Delivery
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 5 min
Understanding Ransomware As a Service (RaaS)
Now, ransom threats have taken the digital route as well!
Foundational 4 min
8 Types of Phishing Attacks to Be Wary of
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Intermediate 4 min
What is GAPPSSMTP and How to Set Up a Custom DKIM Key For Your Emails?
DKIM is the authentication protocol that survives email forwarding, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Detecting DMARC Issues Through Pentesting
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
Prepare Ahead of Holiday Phishing Scams- The 2023 Holiday Season Guide
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Intermediate 5 min
Improving Email Security With DKIM
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
Fortifying Defenses on a Budget: A Guide for Small Businesses
Are you a small business owner strategizing ways to scale your business?
Foundational 4 min
DMARC History: Why SPF and DKIM Weren’t Sufficing
DMARC is driven by the authentication results of SPF and DKIM to prevent fraudulent emails sent from your domain from showing up in the primary inboxes of.
Foundational 4 min
8 Misconceptions About DMARC and its Deployment for Businesses
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Why You Should Take DMARC Adoption Seriously?
The digital realm is replete with grave cyberattacks that can wreak havoc on an organization’s operations, efficiency, and integrity.
Intermediate 3 min
The Emergence of DKIM: A Cryptography-Based Email Authentication Protocol
Navigating through the complexities of email security and the limitations of SPF.
Intermediate 4 min
The History and Evolution of Sender Policy Framework (SPF)
The digital landscape is ever-expanding, both in a malicious as well as positive sense.
Foundational 4 min
Google and Yahoo’s New Email Authentication Policy for 2024
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 3 min
The Concept of External Domain Verification in DMARC Reporting
DMARC reporting helps domain owners gain insights into email activities that consequently support strategical adjustments.
Foundational 3 min
Hackers Are Exploiting the Google Groups’ Practice of Rewriting “From:” Addresses; Should You Rethink Before Continuing on Google Groups Now?
The email authentication landscape changed permanently in 2024, says Brad Slavin, General Manager of DuoCircle. Google, Yahoo, and now Microsoft all require DMARC.
Foundational 4 min
How Generative AI Amplifies Hyper-Realistic Phishing Attacks?
Generative AI has ushered in pathbreaking developments in the technological arena. Minimal human intervention, less time consumption, zero chance of errors̵
Foundational 3 min
Gaining DMARC Visibility the Right Way
DMARC visibility strengthens email security and authentication by facilitating domain owners with information required to manage domain reputation and aids in.
Foundational 4 min
Microsoft Remains the Second-Most Impersonated Brand; Phishing Attacks Reach a Record High
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Foundational 5 min
15 Anti-Spoofing Service Providers Other than Red Sift
Spoofing attacks involve the impersonation of legitimate entities through email, websites, or other online communication channels, often with malicious intent.
Foundational 4 min
7 DMARC Management Service Providers Besides Dmarcian
Dmarcian brings hundreds and thousands of senders, vendors, and operators together to establish a DMARC-protected email ecosystem.
Foundational 4 min
Alternatives to DMARCLY's Blog Section for Learning About Email Authentication and DMARC
Blogs are a great way to learn about technical topics in detail.
Foundational 5 min
Alternatives to Fraudmarc's Cost-Effective DMARC Reporting
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 3 min
Options to Explore Other than PowerDMARC's TLS RPT Record Generator and Lookup Tools
TLS RPT supports the evaluation of the success and in your email activity while also helping in identifying and fixing security issues with your mail server.
Foundational 5 min
9 Reasons Why Companies Resist Implementing DMARC
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 2 min
Is DIY-ing DMARC Safe?
DIY DMARC isn’t considered safe due to the complexities involved and the requirement of technical expertise on board.
Foundational 4 min
DMARC Adoption Amongst US Education Sector
DMARC works by allowing organizations to define how their email domains should be authenticated and to receive reports on how their emails are being handled by.
Foundational 4 min
DMARC Adoption Amongst UK Banks
DMARC is an essential tool for enhancing email security, especially within the financial sector.
Foundational 5 min
How to Fix DMARC RUF Report Problems?
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
10 Reasons Why Your Website Needs A Robust DMARC Report Monitoring Tool
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Intermediate 5 min
Fix SPF Permerror: Overcome Too Many DNS Lookups
the SPF 10-lookup limit (RFC 7208 - Sender Policy Framework (SPF)) is the single most common reason enterprise SPF records silently break, says Brad Slavin.
Foundational 3 min
Maximizing DMARC Reporting: An IT Professional’s Email Security Game-changer
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 3 min
Why DMARC is Important for Online Business
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 3 min
Mandatory Requirement: DMARC Compliance Included in PCI DSS Version 4.0
This test shares the details of the latest DMARC compliance as part of PCI DSS v4.0. Let's take a look.
Foundational 3 min
The Importance of Email Statistics in Email Security and How DMARC Can Help
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Microsoft Announces New DMARC Policy Handling Defaults for Enhanced Email Security
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 5 min
DMARC in a Multi-Domain Environment: Best Practices for Complex Setups
The most common mistake we see during DMARC setup is jumping straight to p=reject without monitoring first, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 3 min
DMARC Policies Explained: How to Choose the Right Policy for Your Domain
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
Why Should You Avoid SPF PTR?
It is only prudent to avoid using PTR for SPF email authentication.
Foundational 4 min
The Role of DMARC in Cyber Insurance
DMARC is the only email authentication protocol that gives you both enforcement and visibility, says Brad Slavin, General Manager of DuoCircle.
Foundational 4 min
What is a DMARC Policy, and How Does It Affect Sending My Emails?
DMARC reporting without automation is like watching security cameras without recording, says Brad Slavin, General Manager of DuoCircle.
Foundational 3 min
Cybersecurity News – AI Email Security: Next-Gen, Manchester Students' Data Leak, Russian APT: Email Server Breach
The organizations that invest in email authentication early save themselves from expensive incidents later, says Vasile Diaconu, Operations Lead at DuoCircle.
Foundational 4 min
Artificial Intelligence and the Serious Threat of Sophisticated Email Attacks and Automated Advertising Bots
Cybersecurity experts predict a rise in AI-led cyberattacks like automated propaganda bots and untraceable and complex email attacks that involve ChatGPT and.
Foundational 4 min
Business Email Compromise (BEC) Scams Take New Dimension With Multi-Stage Attacks
Microsoft's Defender Experts recently discovered a sophisticated multi-stage AiTM (adversary-in-the-middle) phishing and BEC (business email compromise) attack.
Foundational 4 min
An Overview of Email Security Landscape in 2023
Corporate email accounts have been the soft target for malicious actors over the decade.
Foundational 3 min
Microsoft Outlook Rolls Out Its New Authenticator Lite Feature for iOS and Android Users
Now Microsoft users do not need to download the old standalone Microsoft Authenticator to their mobile phones to prevent unauthorized sign-ins.
Foundational 4 min
Unlocking the Power of DMARC: Shielding You and Your Customers from Phishing Attacks
Organizations and their customers are always facing the rising threat of phishing attacks.
Foundational 4 min
Kimsuky Spear-Phishing Worldwide, 2023 Social Phishing Threat, Phishing HTML Doubles
This week's latest email security update brings you the top email security news of the latest phishing campaigns and security features. Let's take a look.
Foundational 4 min
Trust Your Inbox Again: Gmail's Blue Checkmark Brings Enhanced Sender Verification
Google has released a new feature for its Gmail.
Foundational 3 min
Email Phishing Soars: Report, Google: Ukraine Phished, QBot Email Malware – Cybersecurity News
Emails are the top mode of corporate communication often targeted by threat actors and cybercriminals.
Foundational 4 min
BIMI and GDPR Compliance: How to Ensure Data Privacy and Boost Email Security
This text shares how GDPR and BIMI play a crucial role in data privacy and email security and describes why businesses need to leverage BIMI and ensure GDPR.
Foundational 4 min
The Role of BIMI in the Fight against Email Fraud and Scams
The prevalence of email fraud and scams in the modern digital age has become a growing concern for individuals and organizations alike.
Foundational 4 min
Real-world Case Studies of Brands Successfully Implementing DMARC, DKIM, and SPF
Email security is the chief concern of businesses and organizations worldwide.
Foundational 5 min
How to Check if Your Email Authentication Is Set Up Correctly for DKIM, DMARC, SPF & BIMI
Email authentication is crucial in the digital world, but employing email authentication protocols like DKIM, DMARC, SPF, and BIMI correctly is more important.
Foundational 5 min
Cybersecurity News – Netflix Phishing Surge, Healthcare BEC Arrests, Canadian Schools Hit by Cyber-Attack
Phishing remains the #1 initial access vector for cyberattacks, and email authentication (SPF + DKIM + DMARC) is the primary technical defense.
Foundational 5 min
How do DMARC, SPF, and DKIM Work in Tandem to Provide Email Security?
The three core email authentication standards - SPF (RFC 7208), DKIM (RFC 6376), and DMARC (RFC 7489).
Foundational 4 min
DMARC Tags – Learn What they Are and Why You Need to Use Them
DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that improves the SPF and DKIM protocols.
Foundational 4 min
Cybersecurity News – Iranian Agency's Email Breach, Crimson Kingsnake's Malicious Domains, CircleCI Impersonation
Threat actors continue to target email systems worldwide to infiltrate confidential information from organizations or get their hands on individuals’ PII.
Foundational 5 min
DKIM Explained: How DKIM Works and Why is DKIM Important for Organizations?
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 5 min
What is BIMI, and How it is Built upon DMARC
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Cybersecurity News – Exchange Zero-Days Evaded, Fake Email Scam, Report Teams Phishing
As ISPs adopt stricter email policies, senders without authentication will face difficulties with email deliveries; this is especially impactful for smaller.
Foundational 4 min
Cybersecurity News – Malicious OAuth Hijack, University Email Update, American Airlines Breach
Emails are the common entry point for cybercriminals looking to infiltrate the organization's network and obtain valuable data.
Foundational 4 min
Cybersecurity News – TA453's Phishing Tactic, Dark Web's EvilProxy Toolkit, Queen's Passing Phishing Alert
Cybercriminals are using new techniques to increase their chances of success in targeted phishing attacks against various organizations.
Foundational 4 min
Cybersecurity News – Privacy Activists Target Tech Giant, UK Privacy Regulator, Mailchimp Cyberattack
Since email security is an ever-changing landscape, organizations and individuals must focus on the most relevant issues to stay one step ahead of adversaries.
Foundational 4 min
How SPF Can Help Organizations in Improving Email Security and Thwarting Spam, Phishing, and Email Spoofing
Email spoofing is trivially easy without DMARC enforcement - any attacker can forge the From header to make an email appear to come from your domain.
Foundational 5 min
Cybersecurity News – Gmail Attack Bypasses, Secure Cloud Fax: Healthcare Transition, Gmail AMP XSS: Discovered
In today's evolving threat landscape, email authentication is one crucial aspect that no organization can afford to ignore.
Foundational 10 min
Change log
Latest Updates as of March 2026New Features Email authentication isn't just about preventing spoofing - it's about trust, says Vasile Diaconu.
Foundational 4 min
DMARC News: Recent Updates on Email Authentication Standards and Security
Email security is the talking point in corridors of cyber expertise, where experts are constantly devising ways to be one step ahead of the cyber adversaries.
Foundational 2 min
Top Stories Regarding DMARC, SPF, DKIM, BIMI, and Email Authentication
Email authentication tools such as DMARC, SPF, and DKIM, have become a necessity to ensure email security in today’s times.
Foundational 3 min
DMARC FAQ
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Foundational 4 min
Eight Strong Reasons to Use DMARC for Your Business
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
Intermediate 3 min
Secure Your Email Communication By Achieving The Highest Authentication Standards With DKIM Signatures
While emails have made networking more manageable, they have also become a channel for nefarious agents to employ spoof messages to impersonate brands and.
Intermediate 4 min
10 Reasons Why DKIM Fails
DKIM (RFC 6376) signs email messages cryptographically, and unlike SPF, the signature survives email forwarding.
Foundational 2 min
Phishing Protection: Why Are so Few Using DMARC?
What if there existed a technology that could dramatically lower the chances of your domains being spoofed and used for phishing attacks on recipients.
Foundational 3 min
The Silly Case of Unenforced DMARC
If you have any kind of alarm in your home, like a smoke detector or burglar alarm, you probably don't think about how it works very often.