Richard Lyons([EMAIL PROTECTED]) is reported to have said:
On Friday 16 January 2004 22:23, Wayne Topa wrote: [...]
I have a mailfilter rule that deletes mail without an originating Message-ID: and it has not had a false positive in over 3 months now.
[...]
Would you care to share with those like me who can't immediately see how to do it how exactly is that filter set up?
^Message-Id:.*smtp[0-9]\.your\.isp
It is easy if you can find a spam message with your ISP in the Message-Id: header. ie egrep "^Message-Id:.*\.your\.isp" logs/mailfilterlog
Note that my ISP, capital.net, is NOT what I found in the Message-ID. It was their smtp server address and it varied, so I had to write the rule accordingly.
:-) HTH, YMMV, HAND :-) Wayne
That rule would match roughly one third of my legitimate non-list mail...[and only one fifth of my spam by comparison]
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