What DMARC checks
A DMARC policy is published as a TXT record at _dmarc.<domain>. The v tag identifies the record, p sets the requested handling for messages that fail DMARC, and rua lists aggregate report destinations.
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Free public checker
DMARC checker
Look up the DMARC record for a domain and review policy, syntax and reporting findings.
Your result will appear here.
Run the check to see structured findings, severity, evidence and next steps from the public diagnostics API.
The details
What DMARC checks
Read policy in context
p=none requests monitoring without enforcement. Quarantine and reject are stronger policies; review all legitimate sending sources and alignment evidence before changing policy.
A result is a point-in-time check
DNS can vary by resolver and change over time. Verify important changes with your DNS provider and mail platform. Public DNS checks cannot see every private report or sending configuration.
Explore MailConfig ProFrequently asked questions
What does the DMARC checker do?
Look up the DMARC record for a domain and review policy, syntax and reporting findings.
Do I need an account?
No. This public tool is available without registration.