postfix or exim

[Chan Chung Hang Christopher]

> One point that was somewhat important to me when choosing Exim over
> Postfix, was the fact that Exim has a capability of talking to spam and
> malware scanners from within its own process. For Postfix, it's amavis
> daemon, which would have to be listening on port 25 in order to
> intercept SMTP, do its work and then possibly pass it to Postfix. The
> latter then of course have to be listening on some other port. At least
> this was the case a couple of years ago...
>
>   

Postfix supports milter now and has done so for some time. I have 
postfix calling spamassassin without amavis resource hog. Plus clamav too.