Re: Why mailers should not touch the body

I got lots of mail telling me that signing messages in the body of the message came about because "various mailers" munge header lines. Now it's true that for gateway processing, To: and From: lines need to get translated, but I've never seen a mailer change or remove a header that doesn't have to do with addressing before. Can someone provide an example? My claim is that a signature belongs on the envelope and not in the body. ----- To be clear, I'm talking about (e.g.) a PGP signature, not a .signature with a cute saying in it. /jordan