Mail server + antivirus

Hi all,
I am looking for a good imap mail server, with a decent antivirus.
Any suggestions?

I don’t think there is any antivirus software available for QNX.
If you use sendmail as the MTA, you can probably play with those freely available libmilter filters.

I was thinking about using the UW imap, but this is just an email server, I am not using it as a mail client. Do I need an MTA anyways?
I’d rather use postfix than sendmail, I heard sendmail has large buffer overflow problems.
Theres an open source antivirus for mail servers, its name is clam AV.
Maybe someone could port it to QNX, it has already been ported to many operating systems including solaris.
It seems to be quite popular, here’s the link: