submitters? I looked at a bunch of my reports and they are all MIME_GOOD.That one was from microsoft.
Ok, I see.It seems to me that BASE64_LENGTH_79_INF is wrong. It is probably motivated by RFC5322's "SHOULD be no more than 78 characters, excluding the CRLF". My Microsoft reports trigger 79_INF even though they only have 78 characters, excluding CRLF.
Personally, I have lower PYZOR_CHECK and DKIMWL scores.