On 5/7/2010 10:07 AM, John R. Levine wrote: > No, all it says is "we signed this mail." A signer with a good reputation > will presumably rarely sign mail where the From: address actively > misidentifies the sender, but that's a second order effect.
"misidentifies" covers quite a lot. If I send mail from bbiw.net (well, actually, sbh17.songbird.com is my standard MSA) but label the From: field as being gmail.com, that's reasonable to classify as "misidentifying" the From: address, since songbird has nothing to do with gmail. Operator-based signing is typically meaning that the message was posted by an authorized user. There's absolutely no implication that the operator checked or enforced the contents of the From: field. So, the "second order" effect you cite is probably much more indirect than that (third, fourth or fifth-order effect) and much narrower (abusive mislabeling, or somesuch). d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
