This document discusses anti-spam philosophies from a variety of perspectives and provides information about available options for dealing with spam. Spam is defined here as unsolicited commercial e-mail, usually sent in bulk. In other words, spam is simply electronic junk mail. Dealing with spam is, at best, a very difficult task. This is mostly true because spammers have a wide array of tools and circumstances available to them that make it easy for them to send you mail but difficult for you to communicate back with them or any authority over them. Spam is also difficult to deal with because it almost always comes in under the guise of being a normal e-mail message. No amount of technology can automatically decide what content is undesirable to you, but there are many ways to use technology to reduce the amount of unwanted e-mail you or your users receive.