Spam Blocker automatically Removes Attached Viruses, and can block unwanted email by Country, Email Address, Domain, and Keywords using our pre-defined Blacklists (or create your own).

You can setup Spam Blocker to check multiple email accounts. You can even Import your address book from Outlook, Outlook Express, Eudora, or any .txt file so you don't have to worry about email from people you trust getting marked as spam. It's so simple, you'll wonder how you ever lived without it !

http://www.coffeecup.com/spam-blocker/