MailScanner/ f-prot not catching all viruses

[Jan-Peter Koopmann]

> I had some Yaha viruses get through recently, but it turned 
> out that they actually bypassed our mx records and went 
> direct to the server which handles the mail after being 
> scanned, my assumption is that that was our old mx record 
> before using mailscanner so it may have a very old cached 
> copy somehow.

You have a server out there accepting mail without some sort of
protection in front of it? You are relying on MX records only? What
about port scans on your network and finding the machine? Would be quite
easy to do. If I were you I would think about this setup really quick...
:-) Otherwise you might as well get rid of MailScanner in the first
place *g*

Regards,
  JP