| George A. Theall on 13 Sep 2005 20:58:43 -0000 |
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On Tue, Sep 13, 2005 at 04:26:59PM -0400, Mike Leone wrote: > I use the following, as RBL lists, at my work postfix: > > reject_rbl_client list.dsbl.org, > reject_rbl_client multihop.dslbl.org, > reject_rbl_client sbl.spamhaus.org, > > I haven't kept up with the RBL lists; are there others I should be checking? > These are all still operating, I believe. These seem to do a decent job, but > any improvement in outright rejecting spam at SMTP time is appreciated. I don't know if this helps you with postfix -- I use sendmail -- but for what it's worth... I've been using Spamhaus and dnsbl.sorbs.net for a while and last month configured one of my mail servers to graylist incoming connections. Doing so has dropped the number of connections rejected by these blacklists from around 100 to 2 per day while the number for the server that doesn't graylist has remained constant. I plan to monitor for a bit longer but will probably stop dynamically checking the two RBL lists and just stick with graylisting. I do, though, use SpamHaus' D.R.O.P list (http://www.spamhaus.org/drop/drop.lasso) to drop traffic from known bad guys with iptables. George -- theall@tifaware.com Attachment:
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