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Re: [ProgSoc] Whitelisting
On Mon, 3 Jan 2005 06:15 pm, Christian Kent wrote:
> OK well greylisting must be a phenomenal success. I've had no flagged
> spam since the end of August, so 100% must be being caught.
>
> Of course I'd rather be sure, by seeing the =occasional= spam (never
> thought I'd say that). It's the overagressive suspicions I'm having that
> lead me to say this.
Well, if it's any consolation, I received a spam in my spam folder on
23/12/04, arriving via succubus (the primary mail server, so 95% or so of our
mail is being filtered under its configuration), and tagged as spam by
spamassassin with 6.7 points.
> And this isn't including the short period we had several weeks ago where
> the Bayesian filter had to be reset when we changed servers.
Actually, the problem then was that basically nothing was being tagged as
spam. Somehow a bit too much spam was classified as ham by the auto-learner
meaning that spamassassin added a huge "non-spam" score pretty much all mail,
including spam. Since then I've deactivated bayesian filtering entirely, so
we're just filtering on the traditional spamassassin rules.
Also, I probably should point out we now have clamAV running on the mail
servers, meaning virus mail should also be blocked, which may possibly
explain the further reduction.
--
David Edney
Computer Systems Officer
UTS Programmers' Society
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