RE: [vps-mail] Spamassassin scantime huge : over 150 secs.

["Brian Haines" <providertalk@xxxxxxxxxxxxxxxx>]

Jean-Charles,
 
What I and some others have discovered is that SpamAssassin alone as an anti
spam strategy does lead to the scenario you descibe. The most effective way
I have found to help SA along is to do DNSBL with Spamhaus.
 
Go to Configuring Sendmail with the M4 Macro Set:
http://www.viaverio.com/index.cfm?page_id=526
 
add " FEATURE(`dnsbl',`sbl-xbl.spamhaus.org')dnl" to the sendmail.mc file in
/etc/mail (file is likley serverdomain.com.mc).
 
These were recently shared on the VPSv2 list. Notice a more informative
message to help the blocked user. The one that helps the most, in my
experience, is spamhaus. It will literally cut the messages SA has to deal
with in half and free up your resources to get your server performing well
again. I have read that there is a vinstall for DNSBL that includes spamhaus
as well. Good luck.
FEATURE(`dnsbl', `virbl.dnsbl.bit.nl', `"550 (VIRUS/SPAM) Email rejected IP
" $&{client_addr} " - see  <http://virbl.bit.nl/')dnl>
http://virbl.bit.nl/";')dnl 

FEATURE(`dnsbl', `sbl-xbl.spamhaus.org', `"550 (SPAM) Email rejected IP "
$&{client_addr} " - see  <http://www.spamhaus.org/')dnl>
http://www.spamhaus.org/";')dnl 

FEATURE(`dnsbl', `relays.ordb.org', `"550 (SPAM) Email rejected IP "
$&{client_addr} " - see  <http://www.ordb.org/faq//>
http://www.ordb.org/faq/\#why_rejected";')dnl

FEATURE(`dnsbl', `bl.spamcop.net', `"550 (SPAM) Email rejected IP "
$&{client_addr} " - see  <http://spamcop.net/bl.shtml?$&{client_addr}')dnl>
http://spamcop.net/bl.shtml?"$&{client_addr}')dnl

FEATURE(`dnsbl', `list.dsbl.org', `"550 (SPAM) Email rejected IP "
$&{client_addr} " - see  <http://www.dsbl.org')dnl/>
http://www.dsbl.org";')dnl 

FEATURE(`dnsbl', `dnsbl.njabl.org', `"550 (SPAM) Email rejected IP "
$&{client_addr} " - see  <http://www.njabl.org')dnl/>
http://www.njabl.org";')dnl

Happy New Year Everyone!

Brian Haines

 

  _____  

From: owner-vps-mail@xxxxxxxxxxxxx [mailto:owner-vps-mail@xxxxxxxxxxxxx] On
Behalf Of Jean-Charles SAVELLI
Sent: Thursday, December 14, 2006 12:16 PM
To: vps-mail@xxxxxxxxxxxxx
Subject: [vps-mail] Spamassassin scantime huge : over 150 secs.




Hello



I operate a VPSV2

I've been operating SpamAssassin (with ClamAV) 

for a year. Spamassassin (3.1.5) is configured on a per user basis;

There are about 60 accounts each with their spamasssin configuration

file.

Other than minor tweaks to the user_prefs and 

.procmailrc files, spamassassin runs with the default settings.



Yet for about two  month I noticed that the 

server was reaching its max number of process limit (75).

So a month ago I upgraded from VPS V2 1000 to VPS 

V2 2000 with a max number of process limit 150



I now reach this limit every day.



The email load taken on a daily basis has not increased significantly

allthough I admit I cannot be sure the instantaneous pattern has not

changed



What I am sure of is that the spamassassin 

scantime can be huge during a mail arrival peak 

(min 20 sec and up to over  to 150 secs.)



The result is that the number of processes starts 

piling up and the 150 limit can easily be reached.



Any idea would be appreciated





jcs