Quoting Arvid Ephraim Picciani :

> On Saturday 19 April 2008 03:10:42 Philip Prindeville wrote:
>> Which S/X/RBL would be most
>> effective in this case?
>>

> spamhaus.


Or report the ISP to _their_ network provider. Keep going higher and higher.
Sooner or later you find a provider that cares!