[plug] Preferred mail scanning system?

[Cameron Patrick]

Craig Ringer wrote:

> >The anti-virus and anti-spam scanners all seem to require one
> >instance per message. That's the simple method of implementation and
> >intuitively; the most secure.
> 
> What about SpamAssassin's spamd, and clamav's clamd? My understanding is 
> that both of those used the Apache 1.x daemon service model, rather than 
> strict one-helper-per-job. I could have easily missed something though.

Dunno about clamd.  In 2.x Spamassassin, spamd forks a new instance
for each message it processes; the advantage it has over a non-daemon
spamassassin is that it doesn't have to load the perl interpreter and
parse all the spamassassin code each time (think mod_perl).

Cameron.