By early 2006, most anti-spam vendors had added Bayesian filtering to their arsenal of spam blocking methods. The fight between spam and anti-spam looked like it was taking a positive turn. However, by the end of 2006, the nature of spam had totally shifted. Whereas spam had ...

We got an ironic first-hand look at how conventional anti-spam products fail when we announced Spam Terrier (see the previous post). Agnitum distributed the news release via newswire and via personal email messages to editorial contacts. A large number of the email messages were either not delivered or blocked as junk ...