DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email authentication protocol that uses SPF and DKIM to verify email senders and tells receiving servers what to do with emails that fail authentication.

What should my DMARC policy be set to?

Start with 'none' policy to monitor, then move to 'quarantine' and eventually 'reject' once you're confident your legitimate emails are properly authenticated. For cold email senders, at minimum set p=quarantine.

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DMARC Record Checker

Instantly look up your domain's DMARC record, parse every tag, and see exactly what policy you're enforcing.

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DMARC Record Checker

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DMARC Record Checker

Tag Breakdown

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