On Thursday, March 26, 2009 4:22 PM -0700 Jeff Makey <[email protected]> wrote:
I'll go out on a limb again with the suggestion that no RFC explicitly allows an MTA to remove non-compliant Subject headers from e-mail, but I can't find any prohibitions either (RFC 2821 requires the preservation of Received headers, but is silent about others).
Perhaps it makes more sense to flat-out reject such messages, on the same grounds that you would reject malformed SMTP commands. One could have a rejection message that says "violates RFC2822" (with possibly more detail like "multiple subject lines").
What does an MTA do with even more-malformed messages? Could I "legally" submit line noise to an MTA and expect it to deliver it? Or does it just invoke the LDA to drop the gibberish in the user's mailbox and hope the MUA can make sense of it?
(I still think the sender needs to be hit with a cluestick.) _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
