Enterprise mail server

Scot L. Harris webid at cfl.rr.com
Sun Dec 5 22:01:18 UTC 2004

On Sun, 2004-12-05 at 09:13, Chris Mason wrote:
> I'm looking for feedback on experiences of implementing an enterprise mail
> server with IMAP and webmail, preferably groupware, on our Dual Xeon Fedora
> server. We currently have sendmail, uw-imap, squirrelmail, in standard
> Redhat configuration, and we are having huge load problems as the present
> setup is not capable of supporting the needs of our users. Large mail
> folders bring the server to it's knees. We only have 25 users but they
> travel and use the mail system as a filing system, routinely saving 10MB
> emails and never cleaning up old mail. 

I would think a dual Xeon system could support 25 users very easily. 
Have you analyzed what is consuming the resources on your system?  Run
top and look at the load averages.  

If you are running spamassassin I have seen that bog down an email
server.  Implement greylisting.  That will block 90% or better of the
spam and reduce the load spamassassin puts on your system.

Scot L. Harris
webid at cfl.rr.com

The moss on the tree does not fear the talons of the hawk. 

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