The domain and sub-domain on miab is hosted on seems fine, but none of the other domains seem to be registering MTA-STS correctly.
MTA-STS policy is missing: STSFetchResult.NONE
Everything else needed is green.
-Jeremy
How long has it been since you set up your MiaB?
People have reported it taking 24-48 hours for this to clear.
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For me this has only appeared on domains that use an external DNS server. If that is the case, it is important to make certain that all mail-related records for the domain have been correctly configured on the external DNS server. MiaB Status Checks reports problems only for certain records.
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Check the propagation of the text record for _mta-sts.domain.tld
I believe that’s what the status check is looking for.
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