I'm assuming that you are using Outlook Express. Open OE and go to Tools / Message Rules / Mail and do as Buzz suggests and make rules or filters...
BuzzStPoint said:In any mail client.
you can set up filters.
Such as. "If subject contains _____" move to trash or reject..
same with the from email.
That would be the best way.. There are some spam filter programs you buy bt I have never been a fan of those.