>
>>>>>> "BC" == Bill Campbell <bill@celestial.com> writes:
>
>BC> It seems to me that this is trivial if one maintains a database of
>BC> Message-Id:s that have gone to the list and drops any duplicates (I
>BC> BOUNCE them to the list owner so that potential problems are flagged.
>
>Well, that great except for the fact that vacation loops and misdirected
>bounces will come through with a different message-id each time. This
>_will_ break forwarding loops (where someone simply forwards all traffic
>back to the list) and also will stop some kinds of duplicate postings, so
>it might be worth considering as a permanent addition. Unfortunately of
>all the mail loops I've seen, none have been of the type that this code
>would help.
I originally implemented this using Chip Salzenberg's deliver program
when a mailing list originating on uunet was getting floods of
duplicate messages caused when their sendmail program would crash in
the middle of a delivery then restart sending everything again. It
was one of the first things I added to majordomo when I started using
it about six months ago. While this type of thing isn't that common,
they do wreak havoc when they occur.
I agree that it doesn't address the vacation loops or some of the
other things that brain-dead mail programs do (as my mother used to
say ``there's no substitute for intelligence'' :-).
Bill
--
INTERNET: bill@Celestial.COM Bill Campbell; Celestial Systems, Inc.
UUCP: camco!bill PO Box 820; 2835 82nd Avenue S.E. S-100
FAX: (206) 232-9186 Mercer Island, WA 98040-0820; (206) 236-1676
URL: http://www.celestial.com/
Government spending? I don't know what it's all about. I don't know
any more about this thing than an economist does, and, God knows, he
doesn't know much.
-- Will Rogers
References:
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