Depends on the client as well. Currently the version of Outlook (2010) I'm using on my Windows box also treats the signature as an attachment it doesn't know what to do with. Mail.app (version 7.3) on my Mac does understand that David has a signature, but I have a big warning across the top of the mail that the signature can't be verified due to an email address mismatch. Granted, that's an artifact of the mailing list, but even still, here's a live case where S/MIME has an issue - and I'm sure that David and anyone else using a client that supports S/MIME will see the same warning about mail on this list from me.
PAUL ROCK Senior Programmer/Analyst | AOL Mail P: 703-265-5734 | C: 703-980-8380 AIM: paulsrock 44900 Prentice Dr. | Dulles, VA | 20166-9305 On Jun 10, 2014, at 8:09 AM, John Levine via dmarc-discuss <[email protected]> wrote: >> If your MUA shows you that this message is signed with a trusted >> certificate, you're sorted. If you're in the minority (or so I believe) >> for whom that isn't displayed, then boo; you're one of the few for whom >> S/MIME signatures as a matter of course would achieve nothing. > > Gmail: shows the signature as an attachment it can't decode > > Yahoo: ignores the signature completely > > Hotmail: ignores the signature completely > > AOL: shows the signature as an attachment it can't decode, but does say it > doesn't contain a virus > > That's a pretty large minority. > > R's, > John > _______________________________________________ > dmarc-discuss mailing list > [email protected] > http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > NOTE: Participating in this list means you agree to the DMARC Note Well terms > (http://www.dmarc.org/note_well.html)
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
