"Current Spam fighting techniques like for example SpamAssassin are reactive. SpamAssassin uses a rule based approach and a Bayesian filter.[...]Bayesian filtering requires to collect a rather large amount of mail messages before messages can be filtered. This illustrates that reactive Spam fighting is no real solution."

Estimates say that spam makes now up for 80 - 90% of all emails, and many mail servers have difficulties in managing the additional load caused by the latest spam, and spam filters such as SpamAssassin do not recognize large parts of that spam as they did before.

Spam is a plague on the Internet. It’s constant and unending. Some ISPs and free web mail providers offer anti-spam services but if you’re running your own mail server, accepting mail to your own domain, you have to work out your own solution. Can open source compete with the big boys? When it comes to spam, is there a free lunch?

"(draft for an upcoming book called Wicked Cool Emacs)

Ah, spam, the bane of our Internet lives. There is no completely reliable way to automatically filter spam. Spam messages that slip through the filters and perfectly legitimate messages that get labelled spam are all part of the occupational hazards of using the Internet..."

SPAM. It's a dreadful word that causes many a computer user to yank out their hair and wish their service provider would do a better job of keeping SPAM out of your inbox

EMail Spam is against the law, however, it still fills your inbox. However, content Spam, which is on the rise, is not technically against the law or at least has less liability for those who do it. As a result many of us are constantly cleaning forums and blogs from this kind of trash. This tutorial will help you deal with the majority of Content Spam.

There is currently a lot of spam where the spam "information" is attached as .pdf or .xls files, sometime also hidden inside a .zip file. While these spam mails are not easy to catch with e.g. SpamAssassin or a Bayes filter, the ClamAV virus scanner can catch them easily when it is fed with the correct signatures as ClamAV is built to scan mail attachments.

The latest MessageLabs spam index reveals that relative to its market share, any given Linux machine is five times more likely to be sending spam than any given Windows machine. But what are the facts behind those headline grabbing numbers and can Windows really get off the hook that easily?

While spam levels globally remain at a two-year high of approximately 90 percent, some European countries are seeing levels of over 95%.