Just wanted to get your opinion on whether or not I should have RBL activated? I have read some mixed opinions so far. Does it create alot of false positives (vice versa)?
To see an example of why using an RBL at the MTA is a Bad Idea, check out the thread titled "roaringpenguin.com is listed in rfc-ignorant" here:
<http://lists.roaringpenguin.com/pipermail/mimedefang/2004-September/thread.html>
(For some reason the thread is broken up, perhaps due to broken mail clients not preserving the reference chain in the headers.)
