[Mimedefang] When to do Virus checks

[WBrown at e1b.org]

Joseph Brennan <brennan at columbia.edu> wrote on 11/30/2006 08:56:14 AM:

> If you reject messages with executable attachments first, let us know
> whether the virus check catches anything at all.

Out of curiousity, I looked at the statistics report from my CanIt Pro 
installation.  More virii than executables.  I hadn't really paid 
attention to that before.  I checked the documentation and it indicates 
that it checks for infection before executable. 

Now I'm curious why.  I agree that it would seem to make sense to check 
for extension before virus scanning.