You make it possible for us to block buyers, but what about an option so that we can put in the emails of ONLY people that ARE allowed to purchase from us? It would be great to make it so no one can buy except those you have entered, so as to reduce fraud and unwanted buyers. Please implement this...it would be great! (I'm assuming it would be similar to what you have now, in that it doesn't send the product to anyone except for those you have allowed)
