It's a rare computer user who hasn't been bothered by Spam at some stage. By Spam, we mean unsolicited emails that try to sell you things of a dubious nature that you certainly didn't ask for and, in all probability, don't need. Everybody hates spam. It can clog up your email box, threaten the security of your PC, try to trick you into opening dangerous attachments, and even render the mail box entirely unusable.





