Re: OT: mail server blocked

We run spamassassin 2.52 on all our servers, and I know that when I get it
re-enabled on teh pgsql-* lists, the amount of spam that got into the
moderators queue drop'd considerably ....


On Tue, 15 Apr 2003, Alvaro Herrera wrote:

> On Tue, Apr 15, 2003 at 03:41:24PM -0700, Dennis Gearon wrote:
> > What would be a more friendly blocking message would be an invitation to be
> > on the white list. I've seen a very slowly increasing trend for that. My
> > prognostication talent says this is the wave of the future.
>
> I say stop using blacklists and start using bayesian spam classifiers
> (recent SpamAssasin for example).  It's more costly because you have to
> filter mail coming from known spammers, but you get much less false
> positives.  You also have to train it.
>
> I actually filter all my pgsql lists, plus some spanish lists, through
> one we made, and get 5-6 false negatives a day (spam as non-spam), and
> 3-4 false positives a week (non-spam as spam).  30-40 spam messages are
> correctly detected daily.  I dunno how much "real" email, but around 100
> or 120 I think.  With a well-written classifier the scores are better;
> this one is more of an experiment, and it rarely gets feedback (good
> ones feed every message into scorefiles).
>
> --
> Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
> La web junta la gente porque no importa que clase de mutante sexual seas,
> tienes millones de posibles parejas. Pon "buscar gente que tengan sexo con
> ciervos incendiánse", y el computador dirá "especifique el tipo de ciervo"
> (Jason Alexander)
>
>
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Marc G. Fournier                   ICQ#7615664               IRC Nick: Scrappy
Systems Administrator @ hub.org
primary: scrappy@hub.org           secondary: scrappy@{freebsd|postgresql}.org