Released today, SpamAssassin 3.0.0 has support for SURBLs built-in and enabled by default. It checks multi.surbl.org using the command urirhssub in the URIDNSBL plugin.

http://spamassassin.apache.org/full/3.0.x/dist/doc/Mail_SpamAssassin_Plugin_...

If you administer a high volume mail server processing 100k messages per day or more, please set up a local DNS mirror for your own use of the SURBL zone files using rsync and rbldnsd as described in some of the links on our rsync signup form:

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

If you are able to host public DNS for the SURBL zones, please let us know. Pre-release traffic was about 70-80k bits per second, and we expect that to go up at least 5-fold, but that's just an estimate.

Cheers,

Jeff C.