you are, simply, in trouble. I had 3 different email filtering programs where you set 'rules', and let it learn what NOT to download, but once your basic address is known and sold, they will send variations on it using even more elaborate tricks than the filtering program.

Before I changed providers and made specific 'before they find me' preparations to keep from being found, I checked mail 'on the server'...that is, I looked at a list BEFORE downloading my mail, deleted the crap, and let my email get the few good ones. You can get 'some' relief by using one of the filtering programs, although Outlook Express is a special target...

here is one example http://www.glocksoft.com/sc/ It does 'work'...that is, it carefully excludes anything you tell it to, using rules you design, but if your basic address has been sold to 200 spammers, each of those will use 20 variations of THEIR address to send spam.(and they are geniuses at faking addresses, or routing spam thru other addresses that you have not blocked. You will get less than if you didn't use it....but that may not be enough....

The best defense, in some ways, is to see if you can change your email to 1)something new...and 2)to something that automated 'guessing programs' won't come up with--letter/number combinations not in a dictionary. Then, do NOT use that address to sign up for anything...get a 'throwaway' web mail address, like at Fastmail.fm, or Hotmail.com, when you need to give an address to anyone except those you trust.

I sure hope something works....I am living in a world where spam has not found me again...yet...*grin*...it sure is nice.