Alex <mysqlstud...@gmail.com> writes: > And I would assume it would be DKIM for differences between the > address in the From and the SPF record for the envelope sender, > correct?
No. DKIM is a way for an MTA, generally the originating MTA, to sign a message with a key belonging to a domain. A verifier looks up the key in DNS and checks this. So you can get DKIM validity of the From: field, or of the envelope. For your message as received through the list, several rules fired: DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU but not DKIM_VALUD_EF. This is actually rare because the SA list is one of only a few that does not modify the Subject: or add junk to the message, both of which break the signature. I recently received another message, via groups.io, which had DKIM_VALID_EF but no DKIM signature on the author. None of this has anything to do with SPF, but read about DMARC which is sort of like SPF but can say "messages should have DKIM signatures". And then after not being happy about mailing lists that break messages, read about ARC. This will not be quick...
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