SpamAssassin Rule: URIBL_JP_SURBL
Standard description: Contains an URL listed in the JP SURBL blocklist
Joe Wein's jwSpamSpy program forms the basis of the JP data, being used both by Joe's own systems and also Raymond Dijkxhoorn and his colleagues at Prolocation. Prolocation is processing more than 300,000 likely unsolicited messages per day using jwSpamSpy plus their own policies and adding them to Joe's data. The resulting list has a very good detection rate around 80% and a very low false positive rate around 0.01%.
The default scores for this rule can be found in the online list of tests.