You have a problem with spam?
I know I do. A friend, Jim, introduced me to PopFile. And now, it appears that my spam problems are over.
PopFile is easy to set up. Just install it, and point your mail client to it, and update your login settings to point to PopFile and you're done.
PopFile then connects to your mail server, and retrieves your mail for you. It analyzes the mail, then optionally adds a header to it. You then configure your mail client to filter mail according to headers.