Those are actually very good ideas. We tried credit card details but we ended up with a nice database of stolen cards. We have regular customers from Nigeria, b

Those are actually very good ideas. We tried credit card details but we ended up with a nice database of stolen cards. We have regular customers from Nigeria, blocking the Nigerian ISP's will also block our good customers. But the spam filter approach might work. I'll run the data we have trough askimet to see what the hit ratio is. Thanks a lot for the suggestions. I really appreciate all your input.