> Another thing I'd like to do, if possible, is check to see if the "From" > address matches the "return path" and add to the spam score if they > do not match.
The inverse rule is already there (just use a meta rule negation of it): header RP_MATCHES_RCVD eval:check_mailfrom_matches_rcvd() describe RP_MATCHES_RCVD Envelope sender domain matches handover relay domain tflags RP_MATCHES_RCVD nice score RP_MATCHES_RCVD -0.551 -0.703 -0.551 -0.703 > I know they won't match completely in some cases, The From and envelope sender address do not match in many cases - like in almost all mailing list traffic. A mismatch is not worth more than a small fraction of a score point. Same applies to a mismatch between To/Cc and the envelope recipient address: these never match in mail from mailing lists. Mark
