How to Add a DKIM Record to Cloudflare — A Complete Guide by DMARCReport

How to Add a DKIM Record to Cloudflare — A Complete Guide by DMARCReport

In today’s digital world, email continues to be one of the most essential forms of communication for businesses. From customer support to marketing campaigns and internal workflow, email delivers critical messages every second. But as the volume of email grows, so do threats like phishing, spoofing, and spam. That’s where proper email authentication steps in…

How can I use a DMARC creator to generate a correct DMARC DNS record?

How can I use a DMARC creator to generate a correct DMARC DNS record?

Use a DMARC creator like DMARCReport by entering the required tags (v=DMARC1 and p), selecting optional tags (rua, ruf, adkim, aspf, sp, pct, fo), validating syntax/alignment and report routing, then publishing the generated TXT record at _dmarc.yourdomain with a staged monitoring-to-enforcement plan and ongoing report-driven tuning. Context and background: what a DMARC creator does and…

How a DKIM Replay Attack Successfully Spoofed Google — A Deep Dive

How a DKIM Replay Attack Successfully Spoofed Google — A Deep Dive

In today’s email threat landscape, phishing attacks have grown far more sophisticated than ever before. Gone are the days when scammers relied on bad grammar, obvious spoofed domains, or clearly malicious links. Modern attacks can mimic legitimate system alerts so convincingly that even tech-savvy users hesitate to dismiss them. One such evolving threat is what’s…

FreshMail DKIM & SPF Setup — A Complete Guide

FreshMail DKIM & SPF Setup — A Complete Guide

If you send email marketing campaigns using FreshMail, you already know how powerful and flexible the platform is. However, to ensure your emails actually reach the inbox and don’t get blocked, flagged as spam, or rejected outright, you need to authenticate your domain properly. That’s where SPF and DKIM come in — two critical email…

What is a DMARC record and why does it matter for my email security?

What is a DMARC record and why does it matter for my email security?

A DMARC record is a DNS TXT policy that tells receiving mail servers how to handle emails that claim to be from your domain by verifying SPF/DKIM alignment, and it matters because it prevents spoofing, improves deliverability, and gives you visibility through reports to enforce authentication safely. DMARC (Domain-based Message Authentication, Reporting & Conformance) builds…

How to Fix “External Verification Failure” — A Complete Guide by DMARCReport

How to Fix “External Verification Failure” — A Complete Guide by DMARCReport

Email authentication is no longer a luxury — it’s a critical part of protecting your domain from abuse, spoofing, phishing, and deliverability issues. At DMARCReport, we help thousands of organizations understand and resolve technical email security problems every day. One of the most common issues domain owners encounter when managing DMARC records is an error…

What are the basic components required to create a DMARC record?

What are the basic components required to create a DMARC record?

To create a DMARC record, you publish a DNS TXT record at _dmarc.yourdomain.com containing at least v=DMARC1 (this must be first) and p=(none|quarantine|reject), and you typically add optional tags like rua, ruf, pct, adkim, aspf, sp, fo, and ri to control reporting, alignment, rollout, and subdomain behavior. DMARC (Domain-based Message Authentication, Reporting, and Conformance) tells…

Setting Up DMARC for Stronger Email Authentication and Trust

Setting Up DMARC for Stronger Email Authentication and Trust

To set up DMARC for stronger email authentication and trust, correctly configure SPF and DKIM for every sending source, publish an initial monitoring DMARC policy (p=none) with aggregate/forensic reporting, analyze alignment and failure data, then progressively enforce to p=quarantine and p=reject while maintaining DKIM key hygiene and continuous monitoring. DMARC (Domain-based Message Authentication, Reporting, and…

Ultimate DreamHost DMARC Setup Guide — By DMARCReport

Ultimate DreamHost DMARC Setup Guide — By DMARCReport

As email threats continue to grow, protecting your domain from phishing, spoofing, and fraudulent use of your brand is no longer a “nice-to-have” — it’s essential. And at the heart of strong email defense is DMARC — Domain-based Message Authentication, Reporting & Conformance. When implemented correctly, DMARC empowers domain owners to take control over how…

What is the recommended DNS record syntax for a DMARC record used with Office 365?

What is the recommended DNS record syntax for a DMARC record used with Office 365?

Publish a TXT record at _dmarc.yourdomain.com with the value “v=DMARC1; p=none; rua=mailto:rua@dmarcreport.com; ruf=mailto:ruf@dmarcreport.com; fo=1; pct=100; adkim=r; aspf=r; sp=none” to begin DMARC monitoring for Office 365 safely and effectively. DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM to tell receivers how to handle messages that fail authentication. In an Office 365 tenant,…

How can I set up DMARC for my Google Workspace domain without breaking delivery?

How can I set up DMARC for my Google Workspace domain without breaking delivery?

To set up DMARC for your Google Workspace domain without breaking delivery, publish SPF (v=spf1 include:_spf.google.com ~all), generate and enable 2048‑bit DKIM in the Google Admin console, start with DMARC at p=none with rua/ruf to DMARCReport for monitoring, fix and align all third‑party senders via DKIM or aligned SPF, then progressively move to quarantine and…

DMARC: A Comprehensive Guide to Protect Your Domain — by DMARCReport

DMARC: A Comprehensive Guide to Protect Your Domain — by DMARCReport

Email security is among the most critical aspects of modern digital communications. Every year, organizations lose money, time, and reputation due to email fraud, phishing attacks, and domain spoofing. Studies show that even small breaches can cost businesses tens of thousands of dollars, while larger enterprises can lose millions per incident. With email-based threats rising…

How can DMARC improve email deliverability and reduce phishing risks?

How can DMARC improve email deliverability and reduce phishing risks?

DMARC improves deliverability and reduces phishing by enforcing domain-aligned authentication (SPF/DKIM) that mailbox providers trust to place legitimate emails in the inbox while blocking or quarantining spoofed messages at scale. DMARC—Domain-based Message Authentication, Reporting, and Conformance—adds a policy and reporting layer on top of SPF and DKIM so receivers can verify that a message claiming…

How can I create a DMARC record for my domain to stop email spoofing?

How can I create a DMARC record for my domain to stop email spoofing?

To stop email spoofing, create and publish a TXT record at _dmarc.yourdomain.com with a value like v=DMARC1; p=reject; rua=mailto:dmarc-reports@yourdomain.com; ruf=mailto:dmarc-forensics@yourdomain.com; adkim=s; aspf=s; pct=100; fo=1; ri=86400 only after verifying that all your senders pass SPF and/or DKIM in alignment with your From domain. DMARC (Domain-based Message Authentication, Reporting, and Conformance) lets domain owners tell receivers how…

How can I implement DMARC for multiple domains and subdomains?

How can I implement DMARC for multiple domains and subdomains?

Implement DMARC for multiple domains and subdomains by standardizing a DNS template (SPF, DKIM, DMARC), inventorying all sending services, using parent-level inheritance with the DMARC sp tag where appropriate, centralizing rua/ruf reporting, rolling out p=none then gradually enforcing per domain (quarantine → reject) based on report-driven confidence, automating DNS and DKIM key management via APIs/IaC,…

Barracuda SPF & DKIM Configuration — A DMARCReport Guide

Barracuda SPF & DKIM Configuration — A DMARCReport Guide

By DMARCReport — practical, vendor-specific guidance to make your email authentication reliable and DMARC-ready. Getting SPF and DKIM right for traffic that routes through a Barracuda appliance is one of the quickest wins you can make to reduce spoofing, stop spam that appears to come from your domain, and help your DMARC policy work as…