Spamassassin is slow - any tips or good commercial alternative?

Martin.Hepworth martinh at
Wed Jun 18 15:12:56 IST 2008


That's an MTA setup issue.....not mailscanner!

Have you got a gateway machine ot you running mailscanner on the mailserver

Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300

> -----Original Message-----
> From: mailscanner-bounces at
> [mailto:mailscanner-bounces at] On Behalf
> Of Charlie
> Sent: 18 June 2008 14:57
> To: MailScanner discussion
> Subject: Spamassassin is slow - any tips or good commercial
> alternative?
> Thanks for all the replies. In response to some of them:
> - we have now installed nscd, so output is now:
> # /etc/init.d/nscd status
> Status of Name Service Cache Daemon service: running
> - we have added 2 more MS children
> - we'll look into adding more RAM
> > 2-5 seconds per batch is pretty fast. Anything under 1 minute is
> > acceptable IMHO.
> > Why the concern about scan times?? Email isn't IM :-).
> Seriously why
> > the concern about scan times?
> The concern is that I am eventually looking to have over
> 10,000 users, so will be receiving, and then sending,
> multiple emails per second.
> Even now, with only 1,500 users, people have started
> reporting "Too many concurrent SMTP connections; Please try
> again later"
> They only started seeing this message after I turned on
> SpamAssassin. I am thinking that perhaps, as 99% of the
> emails we receive are not spam, that scanning for spam may be
> an unnecessary luxury, once email volumes reach a certain level.
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Red Lion 49 Ltd T/A Solid State Logic
Registered as a limited company in England and Wales 
(Company No:5362730)
Registered Office: 25 Spring Hill Road, Begbroke, Oxford OX5 1RU, 
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