[Mailman-Users] removing individual email headers from digest

Stephen J. Turnbull turnbull.stephen.fw at u.tsukuba.ac.jp
Thu Mar 9 11:00:49 EST 2017

Mark Sapiro writes:

 > Of course, you are free to remove any headers you don't want, but this
 > makes your digest non-compliant and Steve's point about Message-ID: and
 > threading in exploded digests is valid although without References: or
 > In-Reply-To:, Message-ID: alone is not to useful for threading.

That's not quite true.  It's true that the user herself needs the
replied-to message ID to thread, but if she replies to a message
without the message ID, she breaks threading for everybody else, too.

I'm sorry I missed the point about text/plain digests, though.  True
enough, in that case there's no need for Content-Type.


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