DMARC Record Checker

Look up and validate the DMARC record for any domain. Every tag is explained with validation status, errors, and warnings highlighted.

What is a DMARC record?

DMARC (Domain-based Message Authentication, Reporting & Conformance) is a DNS TXT record published at _dmarc.yourdomain.com. It tells receiving mail servers what to do when a message fails SPF or DKIM checks — either monitor, quarantine (send to spam), or reject it outright.

DMARC also enables reporting: you can receive aggregate reports (XML summaries of authentication results across all senders) and forensic reports (redacted copies of individual failed messages) at email addresses you specify in the record.

This checker fetches your DMARC record directly from your domain's authoritative nameservers, parses every tag, and validates the result — flagging invalid values, missing required tags, and common misconfigurations like a missing rua= (aggregate report) address.