However, I'm not sure whether I can use a linux based email server to load the pop3 accounts I use, and then check them for SPAM/Viruses.....
Yes. Most Linux distributions include a program called fetchmail, which will retrieve mail from a POP3 account and put it in the local mailbox.
As for spam checking, I'll second Gordon's recommendation of SpamAssassin <www.spamassassin.org>. ClamAV <www.clamav.net> works very well as a virus scanner and does frequent updates.
-- Kelson Vibber SpeedGate Communications <www.speed.net>
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