[Cialug] spam filtering

[Tom Pohl]

I have a similar problem with spamassassin and odeiavir.  I've been 
investigating lighter yet better solutions.  I'm going to try DSPAM 
http://www.nuclearelephant.com/projects/dspam/ because they place 
strong focus on scalability and speed.

There are other things I've done to the mail server to alleviate 
clogging:
1. Have a default recipient for all domains that goes to a mailbox that 
gets wiped out periodically.  I've found that our biggest clog was 
sending messages back to invalid addresses to say "there isn't a user 
by that name here"
2.  Increase the number of allowed simultaneous outbound SMTP 
connections (120 seems pretty decent)

-Tom



On Oct 20, 2004, at 11:28 AM, Dave Weis wrote:

>
> I've got a client that's getting about 25k emails per day, 95%+ is 
> spam. We are running on redhat 9 with amavisd-new 
> amavisd-new-20030314-p2 and postfix 1.1.11 using the content filtering 
> and sophos as the AV plugin. We are having severe load problems and 
> mail speed is a couple minutes for incoming mail. Part of the problem 
> is that we will get 200-500+ messages stuck in the queue waiting to 
> bounce to non-existant hosts. Would an upgrade to a newer version of 
> amavisd-new help?
>
> dave
>
>
> -- 
> Dave Weis             "I believe there are more instances of the 
> abridgment
> djweis@sjdjweis.com   of the freedom of the people by gradual and 
> silent
>                       encroachments of those in power than by violent
>                       and sudden usurpations."- James Madison
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