What's the big deal about opening Port 80 to Mail? Why should that have a greater spam peril than: Safari, iTunes, Firefox, QT 7, RealPlayer, Dictionary, and virtually all Dashboard Clients, as well as a host of other applications? Don't they too require access through Port 80? (I surf about 10 hours daily.)
For the past 10 years or so, I receive about 3-6 spam messages a day, and have no third party spam blockers. The only spam filters I have are what is installed (by default) by AOL and Mail. I have had the same email address sine 1989.
Indeed I am confused.