Of particular interest to me is the assertion in the report that "any given Linux machine is five times more likely to be sending spam than any given Windows machine."

Linux computers send more spam relative to market share than Windows machines, says Symantec

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.

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.

"(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.

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

The problem with vacation auto responders like 'vacation' for sendmail is that spammers often fake the From: address. Auto responding to these addresses can get your mail server blacklisted. To avoid this you can setup your autoresponder with procmail and, if you are running a spam filter on your machine, you can tell procmail to auto respond only if the X Spam Status header is 'No.'