Avoiding Dead DNS Blacklists
March 28, 2007 · Filed Under Opinions on Email Security
Came across and excellent link that gives the status of RBL sites. Using RBL’s to fight spam is absolutely crucial, but using the right ones is even more important. Personally, I only use zen.spamhaus.org, but there are many. It is a major mistake to use spamcop for rejection criteria in my opinion.