One reporting destination has a malformed authorisation record
ATTENTIONWhat it means
The authorisation record at example.com._report._dmarc.example.net exists but does not start with v=DMARC1, so receivers treat it as absent and drop reports addressed to example.net. Your own address still receives, so this costs you a copy rather than the whole picture.
How to fix it
Ask example.net to republish that TXT record containing exactly v=DMARC1, with nothing before it.
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 9990 section 4. 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_EDV_MALFORMED_PARTIAL
Every fix on this site is yours to implement. If you would rather someone did it, I take this work directly.