> The purpose is allowing an spooling (store+forward) mail relay > to learn which addresses are not accepted by the actual maildrop > (which is connected by an uucp-link, so no direct smtp chat), > to get rid of the thousands silly error bounces from brute force > attacks on email addresses.
Very(!) interesting approach to this. I still transfer large chunks of my mail over UUCP, so this is a problem I face daily. I'd appreciate being kept in the loop for anything you find out. (And collaborating on a solution.) --lyndon