http://www.surbl.org/quickstart.html
Important Note Regarding SpamAssassin 3.0.1 and later: When adding any URIDNSBL rules, including SURBL or SBL ones using urirhsbl, urirhssub or uridnsbl, be sure to set the rule type to "body". For example:
urirhssub URIBL_JP_SURBL multi.surbl.org. A 64 body URIBL_JP_SURBL eval:check_uridnsbl('URIBL_JP_SURBL') describe URIBL_JP_SURBL Contains a URL listed in the JP SURBL blocklist tflags URIBL_JP_SURBL net score URIBL_JP_SURBL 4.0
This is a change from earlier versions of SpamAssassin, including 3.0.0, where "body" above was previously "header". Here is the changelog reference:
r54022 | felicity | 2004-10-07 22:21:30 +0000 (Thu, 07 Oct 2004) | 1 line
bug 3734: uridnsbl rules work on body data, not header data, so change the rule type from header to body
If you had SpamAssassin 3.0.0 SURBL or uridnsbl rules before, you will need to edit them with this change or they will no longer work in 3.0.1 or later!
Jeff C.