SpamAssassin Rule: URIBL_JP_SURBL
Standard description: Contains an URL listed in the JP SURBL blocklist
Explanation
The mail body contains a URI containing a domain that has matched an entry on the DNSBL jwSpamSpy + Prolocation data source URI Blacklist (SURBL).
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%.
Further Info
The default scores for this rule can be found in the online list of tests.
See: http://www.surbl.org http://www.jwspamspy.net/