SpamAssassin is the best combined arms tactic based software I have found so far.
REVERSE SPAM FILTERING Winning Without Fighting by Nancy McGough & Infinite Ink (ii.com).
PROCMAIL QUICK START An introduction to mail filtering with a focus on pr by Nancy McGough & Infinite Ink (ii.com).
Jim Seymour's suggestions/examples for Postfix anti-UCE configuration.
What is Phishing? Phishing attacks use 'spoofed' e-mails and fraudulent websites designed to fool recipients into divulging personal financial data such as credit card numbers, account usernames and passwords, social security numbers, etc. By hijacking the trusted brands of well-known banks, online retailers and credit card companies, phishers are able to convince up to 5% of recipients to respond to them. This site chronicles social engineering attacks so that users can be more aware and avoid them.
This is my scratch pad area to save information and hints about Debian and Linux.
I have been using Perl since it was version 3. I have written thousands and thousands of lines of Perl code. Recently I have discovered Ruby a wonderful interpreted language. Very nice and I expect it will only become more and more popular as time goes by.
An article on Freshmeat about Ruby.
Things That Newcomers to Ruby Should Know.
I am a big proponent of Free Speech software.
I mother over and moderate the mailing lists for the GNU coreutils of fileutils, shelutils, and textutils.
I also wrote and maintain the GNU coreutils FAQ.
I have become a proponent of Debian GNU/Linux. Debian is a high quality operating system and is the backbone of the infrastructure at this site. Here is my personal history (rant) with Red Hat and Debian.