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[Caml-list] posting policy and spam
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Date: 2004-01-04 (10:31)
From: Richard Zidlicky <rz@l...>
Subject: Re: [Caml-list] posting policy and spam
On Sun, Jan 04, 2004 at 12:28:37AM +0100, Sven Luther wrote:
> On Sat, Jan 03, 2004 at 10:24:49AM +0100, Xavier Leroy wrote:
> > There have been several complains recently about spam getting through
> > the caml-list.
> > 
> > For your information, the list is filtered through SpamOracle, and the
> > posting address receives several hundred spams a day.  Due to spammers
> > getting more clever, the efficiency of the filtering went from perfect
> > to about 99%.  That's enough to let significant amounts of spam slip
> > through.
> Well, on a similar subject, is there any chance of implementing a
> workaround in spamoracle to counter those spams specifically designed to
> fool the bayesian filters ? You know, those who have 4 lines of random
> words in a text attachement, and then some html spam. 
> I don't know if the bayesian filters or a modification thereof is able
> to counter this kind of email, but i don't think so.

n-grams should be able to cope with the random words. There is already
at least one library at sf implementing them so I am not sure it is
worth to reimplement it in spamoracle.


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