The head spammer is an idiot from Vietnam. He has an international team of scammers as the spam I received was not only from ISPs from Vietnam, but from many countries in Asia, Europe, Russia, Africa and South America. I made already three complaints to yahoo.jp, but I havent received any report by them, yet. Also, I made complaints to the ISPs by providing the various IPs of the scammer, but they didnt reply to me. So, what will happen ? Why police is not taking actions to catch them and bring them in prison ? I will do legal actions against yahoo.jp by asking big compensations, if they will not catch him as soon as possible and bring to prison.