Package to delete pre-incoming mail?

[davehathaway@yahoo.com (Dave Hathaway)]

I am getting hammered on one email account with viruses/worms.  Not
such a big deal at home, because I can run popfile and read my mail. 
But I access my mail via a webmail interface when at the office, and
it is annoying to keep finding 100 "Check this out kid!!!!" emails
stuffing my box.

What I'd like is an application to read my POP3 mail and to
download/forward suspicious mails to a different account so that my
main inbox is mostly clear.  There are only 3 or 4 subjects that are
very prevalent, and if the application could just check for those and
let me add new subjects in the future, life would be wonderful.

Is there an application that will sniff my inbox for me?

Dave