Your policy only applies to part of your mail

What it means

The reports show pct=N, so receivers apply your policy to roughly N% of failing messages and deliver the other N% as if you had published nothing. Anyone sending as example.com simply retries until they land in the untreated share.

How to fix it

Once a week of reports looks clean, remove the pct tag entirely. It is a ramp for a rollout, not a setting to leave behind.

Check your own domain

This page describes the condition. To find out whether your domain has it, run the RUA test or the full checkup, which examines every record at once.

Understand it properly

This page covers one condition. For the whole picture, The DMARC guide, including how reporting works, or start at the Health Library.

Where this comes from

We judge this against RFC 9989 section 4.7. Every finding on this site cites the specification behind it so you can check the work rather than take our word for it.

Other RUA conditions

• You are ready to turn enforcement on
• Some of this is forwarded mail, not an attack
• Somebody is sending as you, and it is being delivered
• Unauthenticated mail is getting past your policy
• Your policy stopped forged mail
• Your own mail is failing authentication