The Big Gorilla Project

Spam is an ever-increasing annoyance for e-mail users. Most people have some form of spam filtering application that reduces the instances of the frequently offensive unsolicited commercial messages. Many of these filters seek to identify spam based on the address from which the message is sent, but spammers are already wise to this trick, and spoofing is now commonplace. By hiding or misdirecting their transmission source, spammers make it exceedingly difficult for most users to determine from where the spam message actually came.