TLS reporting record is malformed
ATTENTIONWhat it means
The record at _smtp._tls.example.com does not start with v=TLSRPTv1 or has no usable rua, so reporting servers discard it and no reports are sent.
How to fix it
Publish exactly: v=TLSRPTv1; rua=mailto:tlsrpt@example.com. the version string is case-sensitive.
Check your own domain
This page describes the condition. To find out whether your domain has it, run the TLSRPT test or the full checkup, which examines every record at once.
Understand it properly
This page covers one condition. For the whole picture, TLS-RPT, defined, or start at the Health Library.
Where this comes from
We judge this against RFC 8460 section 3. Every finding on this site cites the specification behind it so you can check the work rather than take our word for it.
Other TLSRPT conditions
TLSRPT_INVALID
Every fix on this site is yours to implement. If you would rather someone did it, I take this work directly.