Re: [Exim] Re: SPAM filtering

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Συντάκτης: Marc MERLIN
Ημερομηνία:  
Προς: Jeffrey Wheat
Υ/ο: Derrick 'dman' Hudson, exim-users
Αντικείμενο: Re: [Exim] Re: SPAM filtering
On Thu, Jul 18, 2002 at 10:17:29AM -0400, Jeffrey Wheat wrote:
> Derrick,
>
> Spam Assassin has cost me a large number of headaches. We have tried to
> use it a number of times which only resulted in customers getting
> extremely irate about how we are altering their emails. It causes a busy


You didn't configure SA correctly. Did you read its documentation?
You can turn the alterings off

> server to drive cpu load up through the roof, resulting in poor
> performance and lost email when the server begins to reject mail due to
> system loads.


That does not result in lost mail, just delayed mail.

> Most importantly, the idea is to STOP spam, not just put a tag on it
> telling my customers that the mail they are looking at is possibly


http://marc.merlins.org/linux/exim/sa.html
You complain about false positives?
Well, setup sa-exim to not reject mail before an SA score of 10 or 12. That
will give you very very few false positives.

That said, SA isn't set and forget for an ISP, you have to prepare yourself
to be very familiar with SA and to know how to tweak its scores.

Please send followups to the sa-talk or sa-exim lists.

Marc
--
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