[faq-maintainers] Re: RFC violations of this list software

Tom Lane (tgl@sss.pgh.pa.us)
Sun, 16 Aug 1998 17:33:16 -0400

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Andrew Gierth <andrew@erlenstar.demon.co.uk> writes:
> [following line munged to confuse Lyris]
> Message-1d: >LYR953-91--andrew<AT>erlenstar.demon.co.uk<
> That message-ID violates RFC 822, because the generating host cannot
> guarantee its uniqueness. *NO-ONE* other than my machine should be
> generating message-ids ending in @erlenstar.demon.co.uk>.

Not only is it against RFC specs, but it's a good way to get the
list traffic sent to /dev/null by anyone who's using spam filtering.
There are a fair number of spammers using engines that put the victim's
address into the Message-ID. As a result, a lot of people (including
me) filter against Message-IDs like that. I've had to fish all of
today's traffic out of a "probable spam" folder.

Why in the world is this listserv generating a new Message-ID for each
recipient, anyway? It'd make a lot more sense to preserve the original
Message-ID, IMHO.

regards, tom lane

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