Mailshell, a San Francisco software company, is working with the nonprofit site TechSoup.org on a campaign to help charities fight unwanted e-mail messages. The effort will culminate in Mailshell’s ...

America Online is extending the availability of its personalized antispam software to people who use older versions of its online services. The upgraded antispam package allows subscribers to set up ...

We suspect that you had more than enough mathematics in the form of Bayes Theorem last week so this week we’ll explain how it’s used in what is called Bayesian filtering to remove spam (note that the ...