Re: A permission to re-sign header

Michael Richardson <[email protected]> Sat, 19 Apr 2014 09:05:23 -0400

Newsgroups	gmane.ietf.rfc822
Message-ID	<[email protected]>

John R Levine <[email protected]> wrote:
    >> First of all, "permission to re-sign" seems to me to be the wrong
    >> semantics. This is simply "originally sent from here to there". The
    >> originating site (example.com) wants to say, "This message came from
    >> example.com and got sent to [email protected]", in a way that
    >> someone who receives a message from foo.example.net can check.

    > It has to be more than that, it has to say that it's OK for foo.example.net
    > to pass it along in modified form.

Yes, in particular, it's quite likely both DKIM and S/MIME signatures will
not survive some things the mailing list might want to do, including:

1) removing html parts or other attachments
2) formatting html part to text/plain
3) formatting text/plain; format=outlook into proper format=flowed


--
Michael Richardson <[email protected]>, Sandelman Software Works
 -= IPv6 IoT consulting =-

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