DMARC Lookup

Check DMARC (Domain-based Message Authentication, Reporting & Conformance) records. Validate policy, check report recipients, and get a security score.

What is DMARC?

DMARC builds on SPF and DKIM to give domain owners control over what happens when email fails authentication. It prevents spoofing and phishing by telling receiving servers to reject or quarantine unauthorized emails.

p=reject is the strongest policy — unauthorized emails are blocked entirely. p=quarantine sends them to spam. p=none only monitors without taking action.