On Thu, 2011-03-03 at 20:38 -0500, Marshall wrote:
> I know the feeling. I have been trying to block the ones with just a
> URL in the body and have been unsuccessful ( using ESVA, postfix and
> spamassassin combo with clamav).
Well I must say nothing has impressed me more in the war on spam than
ASSP[1]. Not much for perl, or how its written/maintained. But its a
great application, and the most effective tool I have found. I learned
about it long ago on this list from Gene Cronk.
I was using qmail-scanner with spamassassin, clamav, and several other
applications which names I have since forgotten. It was ridiculous, was
using like 20mb per email just for spam stuff.
With ASSP I used to use it with clamav, but found its so good at
detecting spam, which most virus emails are similar in nature to, if not
spam. There really was no need for clamav, it did not provide any
additional benefit. Nothing ended up in the virus folder like ever.
The only trick to ASSP is in the training period, building your spam
keyword/bayesian database. Though later versions of ASSP rely less and
less on the bayesian database. Few things should be caught by that, but
it still does catch things. Though at times it is also responsible for
most false positives as well. Such as in the case of the JaxLUG mailing
list. Though still on avg ~2-3 emails per day are caught by the bayesian
filter. Much less all the other attempts.
Here are the current server stats :) (hopefully formatting is retained)
ASSP Proxy Uptime: 41 days 18 hours 47 mins 1 sec 445
days 6 hours 51 mins
Messages Processed: 1539 (36.8 per day) 17438 (39.2 per
day)
Non-Local Mail Blocked: 92.5% 81.2%
CPU Usage: 1.60% (0.03% avg) 0.03% avg
Concurrent SMTP Sessions: 0 (3 high / 20 max) 7 high
since restart at Fri Jan 21 01:55:44 2011 since reset at Sun Dec
13 13:51:55 2009
Totaled Statistics
SMTP Connections Received: 30218 254583
SMTP Connections Accepted: 30186 248939
SMTP Connections Rejected: 32 5644
Envelope Recipients Processed: 6771 127963
Envelope Recipients Accepted: 229 6362
Envelope Recipients Rejected: 6542 121601
Messages Processed: 1539 17438
Messages Passed: 115 3287
Messages Rejected: 1424 14151
1. http://assp.sourceforge.net/
--
William L. Thomson Jr.
Systems Administrator
Jacksonville Linux Users Group
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