We use Spam Bully 3. Do you know how this software looks at and decides an email is SPAM? We have a folder set up in our Outlook and 95% of our spam goes there. The problem I see is that it still gets to us but is sent away from our INBOX to the SPAM folder.
No idea. I've always used SpamAssassin until recently. I still do, it just doesn't have much to do.
Of course, I believe that using Windows for email is like using gasoline to pressure wash hot engines. You might get away with it for a while but sooner or later you're going to get burned.