What this checker tests
- Record at _dmarc.domain
- Policy and applied percentage
- Aggregate and forensic reporting
- SPF/DKIM alignment and subdomain policy
Free domain diagnostic
DMARC Checker
Validate a domain's DMARC policy, reporting destinations, alignment, and enforcement level.
How to understand the result
p=none monitors without requesting enforcement.
p=quarantine asks receivers to isolate suspicious mail.
p=reject requests rejection, but should normally follow careful monitoring.
Common problems
- Missing record
- Invalid or duplicate policy
- Monitoring-only policy left indefinitely
- Reports sent to an unintended address