On Sat, Mar 20, 2010 at 06:23:32PM -0500, Stan Hoeppner wrote: > Voytek Eymont put forth on 3/20/2010 5:52 PM: > > one of the blacklist I use it is ix.dnsbl.manitu.net > > > > to my knowledge, it has been OK since I've set it up, with no known > > complaints > > > > what is the user's opinions on it's usefulness ? > > This is one of the downsides to fully automated low threshold trap driven > dnsbls. Similar to SORBS, ix.dnsbl.manitu.net will list any IP that sends > over the threshold amount of spam to its traps. I stopped using this dnsbl > long ago for the same reason I stopped using SORBS--too many "FPs" and not > nearly enough blocking of actual spam to justify continued use. > > That said, I only use dnsbls for outright blocking at smtp because I'm > philosophically opposed to content filters such as Spam Assassin. That > said, IMHO, the proper way to use ix.dnsbl.manitu.net, SORBS, and similar > dnsbls is via scoring within something like Spam Assassin, but not for > outright blocking.
Using some additional "lesser" BLs works just fine here, I require two to hit (using a policy daemon). I get as many rejects as with ZEN (before that I have many dynamic checks, so it doesn't get much).
