How difficult is it to run your own email server?

[Mike]

On top of what Darren and Mike are saying. If you decide to go debian 
with ClamAV. Might be worth checking out the volatile repository.

http://www.debian.org/volatile/

As you know things like virus scanners are a moving target that doesn't 
really fit in with the Debian stable mentality. Thats the point of 
volatile and it will keep you in good standing with dist-upgrade to 
lenny when that day comes.

Also, you may find amavisd-new nice to tie spamassassin and clamav together.

-Mike

Mike Garfias wrote:
> I agree with everything Darrin wrote, but would add a few things:
>
> On Debian, its all very easy.  Make sure you have your apt sources  
> set to download from the security tree, and update it somewhat  
> frequently.
> Use Postfix/Dovecot - not only are they easy to setup, but they have  
> a good reputation for security (The dovecot guys will even pay you if  
> you find an exploit in their code).
>