DMARC quarantines instead of rejecting
MINORWhat it means
Mail that fails authentication for example.com is delivered to spam rather than refused. Better than nothing, and one step short of protection, a spoofed message still reaches the mailbox.
How to fix it
Once your reports show only legitimate senders passing, change p=quarantine to p=reject.
Check your own domain
This page describes the condition. To find out whether your domain has it, run the DMARC 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, from a first record to enforcement, 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 DMARC conditions
DMARC_P_QUARANTINE
Every fix on this site is yours to implement. If you would rather someone did it, I take this work directly.