Email · Fix guide
DMARC is monitoring only
- DMARC
- Domain-based Message Authentication, Reporting and Conformance
A p=none policy gathers evidence but does not ask receivers to block impersonation.
What is a DMARC enforcement policy?
The DMARC p tag can monitor only, quarantine suspicious mail, or reject it. Enforcement is most effective after reports show that every legitimate mail source authenticates and aligns correctly.
What to do next
- Review aggregate reports and identify every legitimate sender.
- Fix SPF or DKIM alignment for those senders.
- Move gradually to quarantine, then reject, using pct if needed.
Useful links
How to verify the fix
Monitor delivery and DMARC reports after each policy increase.
When this result may be wrong
p=none can be the correct state during discovery; moving too quickly can reject legitimate mail.
Ready to check again?
Check a domain
Run a fresh report after DNS caches and platform changes have had time to update.