Spam Solutions from an Expert
Mod N writes "SecurityFocus has posted a nice survey of anti-spam technologies by spam expert Neal Krawetz, in which he delves deeply into the specifics and pitfalls of the numerous proposed solutions. Krawetz makes it obvious that securing the email infrastructure is a very complex problem that many of the current (simple) solutions can't solve alone."
The linked article is part 2, Part 1 is here.
Rock that crushes, Paper & Scissors that don't matter.