On Jan 4, 2008 8:33 PM, Mark Chappell <[EMAIL PROTECTED]> wrote: > > Since you're using Postfix which I don't really know I'll do most of > this as an outline, and our procmail script is fairly custom do I'll > only quote chunks of the procmailrc. > > The first line of defense are our front-line mail relays. These reject > on various DNS rbls and add headers for several others. The lists we > use include SpamHaus' full zen list, SpamCop, MAPS and SORBS. They also > run a copy of spam assassin WITHOUT any of the baysaen stuff turned on, > a high enough spam score causes an out right rejection at the end of the > SMTP DATA time, and leaves a header in the message for lower scores. We > also reject on Virus signatures using the, and have some extra > signatures to pick up certain types of phishing scams > (http://www.sanesecurity.co.uk/). Any rejection at this stage is done > before we've actually accepted the mail, so backscatter (which I would > guess is what caught you out) is seen to come from the server sending > you the spam NOT from your servers.
(.....) Hi Mark, thanks for the detail reply, its very much appreciated :) thanks and regards, askar
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