Free email security tool

DMARC Checker

Look up any domain's DMARC record and see exactly how it's configured — policy, alignment and reporting — with a graded breakdown of its protection against spoofing.

What is DMARC?

DMARC (Domain-based Message Authentication, Reporting & Conformance) tells receiving mail servers what to do with messages that fail SPF or DKIM authentication. A strong policy (p=reject) stops attackers from sending mail that appears to come from your domain. Publishing a reporting address (rua) gives you visibility into who is sending mail on your behalf so you can tighten the policy with confidence.