List of popular DNS blacklists for spam?

David Landgren david at landgren.net
Fri Jun 13 16:16:33 PDT 2003


Philip Hallstrom wrote:

> Hi all -
> 	I'm testing the use of some DNS blacklists to cut down on my spam
> and there are a lot of servers to choose from.  I was wondering if there
> is a list of popular servers.  I've seen comparison lists, but I'm hoping
> for more of a survey of sysadmins and what they use (if anything).

relays.osirusoft.com
   -- has a feed from SPEWS, not everyone likes what that represents

dnsbl.njabl.org
   -- very good, although slow to remove sites that fix things up

relays.ordb.org
   -- pretty conservative, no false positives

list.dsbl.org
   -- extremely good, but I get a few false positives from time to time

multihop.dsbl.org
   -- a bit too severe for my tastes

blackholes.wirehub.net
   -- seems ok, but as it's at the end of my list it doesn't have the 
chance to catch much, I suppose.

I've heard favourable reviews of opm.blitzed.org, 
blackholes.five-ten-sg.com and proxies.relays.monkeys.com

Before you start using remote blacklists, you should set up your own 
restrictions, blocking on garbage HELO, envelope forgeries and the like.

David



More information about the freebsd-questions mailing list