On 29.08.2017 13:42, @lbutlr wrote: > There are very good reasons for footers on many lists, and DKIM should > be smart enough to figure this out.
I disagree about "very good reasons for footers on many lists". Meta information belongs into the message headers, not the body. DKIM-signed messages are letters, not postcards, and no non-totalitarian postal service would dare open your letter and scribble junk on the contents. Stick to the envelope, Mr. Postman. ;-) As for part two: If someone messes with cryptographically signed content en route, it is not the signer's fault at all. Alice's responsibility ended when she hit the send button. Calling for Bob, the recipient of the messed up message, to figure out why parts were broken by the transporting third party does not make any sense either. He who messes is at fault. I am not saying DKIM is perfect, but it is easy for mailing list admins to not break signatures -- just leave existing data alone. -Ralph P.S.: We're drifting far away from Postfix here.
