The one that stands out is "multipart/signed" (from RFC1847) which drops to about a 65% survival rate. I don't know much about how this is typically formatted or treated enroute, but it was easily the biggest outlier in the report. Not sure if that should be a surprise to us or not.
I'm surprised. That suggests something often adds the S/MIME signature after the DKIM signature, but as far as I know, S/MIME signatures are usually applied by the MUA.
Do the stats say what kind of failure it was, e.g. body hash or header hash?
Regards, John Levine, [email protected], Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. http://jl.ly
smime.p7s
Description: S/MIME Cryptographic Signature
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