Messages in this thread | | | Date | Mon, 3 Jun 2002 22:23:38 +0300 | From | Matti Aarnio <> | Subject | Re: please kindly get back to me |
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On Mon, Jun 03, 2002 at 12:06:53PM -0700, Larry McVoy wrote: > On Mon, Jun 03, 2002 at 10:00:46PM +0300, Matti Aarnio wrote: > > Anti-spam technology really needs constant evolution, as those > > spammers do evolve themselves... > > If ever there was something which was screaming for an open source project, > it's spam filtering. It seems like every major mailing list has someone > like Matti, working really hard on a thankless task, but losing out under > the tide of new spam every day. Seems to me if there was a public repository > (sourceforge, bkbits, whatever) with a collection of procmail filters which > have been shown to work correctly, that would be a win.
Larry,
Best technologies (as I see them, but I am not omniscient, of course) are those that do scoring. E.g. naving some word NN might not alone be considered spam-signature, but it might increase score, and once the score exceeds arbitrary treshold (lower with short messages?), the message is considered spam, and rejected.
Some recent TEXT/PLAIN spams have been encoded in BASE64 or ingenous QUOTED-PRINTABLE to avoid several common Perl-RE pattern using filters.
I think there are several free codes of this kind available, but my time has been chronically over-subscribed to do radical things like taking this kind of codes into use.
> -- > Larry McVoy lm at bitmover.com http://www.bitmover.com/lm
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