BIMI has no verified mark certificate
MINORWhat it means
There is no a= tag, so there is no certificate proving the logo is yours. Gmail and Apple Mail require one before they will display an indicator, without it, the record works only where evidence is optional.
How to fix it
Obtain a VMC from a recognised issuer and publish it: a=https://example.com/vmc.pem
Check your own domain
This page describes the condition. To find out whether your domain has it, run the BIMI test or the full checkup, which examines every record at once.
Understand it properly
This page covers one condition. For the whole picture, BIMI, defined, or start at the Health Library.
Where this comes from
We judge this against BIMI draft 14, section 4.3. Every finding on this site cites the specification behind it so you can check the work rather than take our word for it.
Other BIMI conditions
BIMI_VMC_MISSING
Every fix on this site is yours to implement. If you would rather someone did it, I take this work directly.