On Mon, Oct 13, 2008 at 6:22 PM, Joey <[EMAIL PROTECTED]> wrote: > >> -----Original Message----- >> From: Aaron Wolfe [mailto:[EMAIL PROTECTED] >> Sent: Monday, October 13, 2008 5:56 PM >> To: Joey >> Cc: postfix-users@postfix.org >> Subject: Re: Finally blocking some spam > >> >> you might want to consider the invaluement Anti-Spam DNSBL >> http://dnsbl.invaluement.com/ >> It does cost a little bit of money (a very small amount) but it's >> blocking 40% of connections *after* zen, spamcop and surriel have >> their chance. >> FPs are on par with Zen, which is very very good for us at least. >> >> -Aaron > > [Snip] > > Another URL won't have the same value as the firewall method. > I'm not saying that the RBL you mentioned won't be of value, I am saying > that we are getting over 1 million connections to each mail server every > day. > If I query in any order the RBL's I am taking up a lot of CPU, Traffic ( > from a bunch of packets not heavy bandwidth ) and then the resources of the > RBL's as well. If I simply kill the connection at the firewall I have saved > many resources for a multitude of people. While I like the free services > many of these people provide, the minimal donations I have given on few > occasions doesn't support their paper budget for the year, so I want to use > the services efficiently appreciating what they are doing for the community. > > If you meant to feed the firewall with the ip's in this list, than that of > course may be something to consider and test. > > Joey > >
FWIW, this rbl is provided only via rsync, not DNS lookups. You certainly could use the files to generate firewall rules although I don't think that's how most people use it.
