[Mimedefang] duplicate subject headers {Scanned by vsl mailsafe}

[David F. Skoll]

WBrown at e1b.org wrote:

> Would rejecting for non-conformance of a message be any different than
> using rfc-ignorant.org which will blacklist you if you don't have working
> postmaster and abuse addresses.

An RFC 2822 validator is (IMO) pointless.  The mail RFCs, especially
anything related to MIME, are so badly specified and have so many unspecified
edge-cases that rejecting a so-called "invalid" message for not conforming
to the RFC would render you unable to communicate with a significant
fraction of the Internet.

RFC 2231 is a particular low point for the IETF, in my opinion.  What the
H*LL were they thinking??  You have no idea the grief we went through to
make MIME::Tools handle that in a semi-reasonable way.

Regards,

David.