I agree with Oscar.
I am currently performing lab testing of two email filtering products (Mail Marshal and SurfControl Email Filter. But I'm not sure if there is anything else out there that would fit better my company size (250 users). Looks likeSurfControl is geared for large companies and MailMarshal at first glance is over simplyfied. I'm trying to find a product that would fit my company size and would have easy to use interface and of course very reliable filter.

Jakub

P.S. I'm looking for MS Windows based solution.