What is DMARC?

DMARC, short for Domain-based Message Authentication, Reporting & Conformance, is an email authentication protocol to check if an email message really originates from where it claims to have, based on SPF and DKIM. In addition to email authentication, it also adds reporting capabi…

What is a DMARC Failure Report?

DMARC failure reports are generated and sent almost immediately by the mailbox provider after an email fails DMARC authentication. It provides detailed information about the email message so that the domain administrator can use it to investigate into what caused th…

What are DMARC aggregate reports?

DMARC aggregate reports are files in the XML format containing aggregate email authentication information sent by Email Service Providers (ESP) like Gmail, Office 365, Yahoo Mail, etc. periodically to recipients designated by domain owners…

What is DKIM?

DKIM, which stands for DomainKeys Identified Mail, is an email authentication method designed to detect forged header fields and content in emails. DKIM enables the receiver to check if email headers and content have been altered in transit…

This post provides step-by-step instructions on how to add a DMARC record in CloudFlare.

About DMARC records

First of all, a DMARC record is a TXT record published to the DNS for your domain, under dmarc.yourdomain.com, where “yourdomain.com” is your actual domain or subdomain…

DMARC reports on the current status of your email authentication program by sending DMARC reports to the specified mailboxes. We will go over how to set up DMARC reporting to receive DMARC reports in this post.

When you publish a DMARC record in the DNS, not only can you specify the policy which i…