Lloyd Standish:
Once spam is positively identified as
coming from a given SERVER-IP, then all mail coming from that server
could automatically be assigned a degree of suspicion.
No, that is already done at the SMTP-level. Read about DNSBL.
The human-greylisting I propose, works on the triple, not on any of the
elements apart. It comes after a lot of other filtering, that will
already get rid of 80% or more of the unwanted messages.
I understand that the envelope SMTP-MAIL-FROM might easily be forged,
the same as the message headers - correct?
Yes, but that won't matter much. Most messages with faked addresses will
already be either SMTP-Rejected (by any of the Sendmail milters) or
filtered out by SpamAssassin (most on DCC_CHECK or some URIBL_xx_BL
status).
(I'm receiving list mails in digest mode, so I can't make my replies
follow threads, sorry.)
Better change that. formail can split up digests.
See also news://news.gmane.org/gmane.mail.procmail
--
Grtz, Ruud
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