Relying on RBLs for spam prevention is bad, no, make that very bad. The war on spam takes time and effort. Using RBLs for spam prevention is like saying I will keep the front door of my house locked and no one will steal anything. 1: They can still get in through windows. 2: They can still get in through other doors. 3: Your friends will be locked out. John Tolmachoff Engineer/Consultant/Owner eServices For You