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).
Tag
email security
336 articles from DMARC Report.
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 12 min
Best Email Authentication Platforms for PCI DSS v4.0 Compliance in 2026
Quick answer: PCI DSS v4.0 Requirement 5.4.
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 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.
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 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 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
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 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.
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 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).
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.
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 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 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.
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 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 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
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 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 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 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 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 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 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 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 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 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 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).
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.
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.
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 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 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
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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
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 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 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 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 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 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 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
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 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 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 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 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 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 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
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
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 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
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 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 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 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 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 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
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 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.
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.
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
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.
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
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 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 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.
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 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 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
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 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 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.