[dmarc-discuss] a detour into S/MIME, was MLM and Header-From rewriting

John Levine johnl at taugh.com
Tue Jun 10 05:09:56 PDT 2014


>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


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