[SURBL-Announce] RBL caching howtos, 2 new public nameservers, minor refresh time chage

1. We'd like to welcome and thank our two new public name server administrators and hosts:

Dave Burke and esat.net Bjorn Jensen and info-connect.dk

Without the help of all of our public nameservers, SURBLs would not be possible. Thanks Dave, Bjorn and all the administrators and networks of our nameservers!

2. We've added some documents about using rbldnsd, rsync, dnscache and BIND to locally cache SURBL (and any other RBL) zone files.

Bob Cottrell describes setting up rbldnsd and rsync on top of an existing BIND server:

http://www.surbl.org/rbldnsd-howto.html

Rick Macdougall writes up how he set up rbldnsd to run on the same name server as dnscache from djbdns:

http://www.surbl.org/dnscache-rbldnsd.html

I've written up how to use rsync with BIND to cache RBL zone files, though rbldnsd is a better solution for many reasons.

http://www.surbl.org/bind-rsync.html

In addition, NJABL has some helpful tips on setting up rbldnsd and rsync to serve RBL zone files locally:

http://njabl.org/rsync.html

Kind thanks to Bob Cottrell and Rick Macdougall for preparing and sharing their notes for everyone's benefit! Please let me know if you have any comments on these. Any errors are probably due to my transcriptions.

***************************************************************** Anyone running a high-volume mail system (i.e., more than 250,000 inbound messages per day) is strongly encouraged to set up local caching of their RBL zone files including SURBLs. The benefits are improved mail performance, reduced network traffic, and offloading of the public nameservers. rbldnsd and rsync is the preferred way to do it, but BIND will also work (slower ;-).

Also if you are using a version of SpamCopURI prior to the current 0.14, please upgrade it. Some earlier versions do not support DNS caching, which can result in excessive DNS traffic. http://sourceforge.net/projects/spamcopuri/ *****************************************************************

3. We have lowered the refresh times on ws.surbl.org and be.surbl.org zone files to 20 minutes. This change should not affect most SURBL users. Refresh times of 10 minutes remain unchanged on sc.surbl.org. Retry times are programatically half of the refresh times (i.e. 10 and 5 minutes respectively).

Jeff C.