December 30, 2005

Fighting Spam

If you run an email server, Postfix is a software package you should look at. Very simple out of the box and very configurable. I have run several Postfix systems for work and for some clients and have found the level of support to be excellent. And it's free. Plus supported by IBM as Open Source (the author works for IBM) Here is an excellent step-by-step description of how one user locked his email down to minimise SPAM:
Fighting spam at the server level
The last few evenings and nights were spent learning about the architecture of Postfix mail transfer agent, the workhorse responsible for routing and delivering email on a high percentage of the Internet's mail hubs, including mine.

The focus of my research has been controlling e-mail spam. My goal is to stop over 95% of spam that audaciously attempts to lodge itself in my inbox. As a result of my hijinx, I have not received a single spam message in the last four days, although there have been many attempts that were rejected by my all-new, all-souped-up spam filtering system.

I will describe my efforts, along with pertinent background information, for posterity.
Good stuff! Posted by DaveH at December 30, 2005 7:51 PM