Date: 11/03/07 (Java Web)    Keywords: spam

We are tweaking our postfix servers to offer maximum spam protection upfront with helo checks, header checks, blacklist checks, RBL’s and more. So far my daily spam count has dropped from about 3000-7000 spams / day to about 15-50 spams per day. It should drop even more as I added more RBL to my list. One [...]

Source: http://blog.taragana.com/index.php/archive/strong-anti-email-spam-protection-in-place/