Your policy stopped forged mail

What it means

N messages from N sources failed DMARC and were quarantined or rejected because you publish p=none. This is the treatment working exactly as prescribed.

How to fix it

Nothing to change. Keep an eye on the blocked sources in case one of them turns out to be a service of your own that nobody told you about.

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 9990 section 3.1.1. 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 own mail is failing authentication
• Reports are arriving, but nothing is being stopped