Scott Silva wrote: > It is probably ignoring your # as a comment delimiter. So it is picking up # > xsmtp02.mail2web.com as part of the error text Yes this was exactly the problem. I had completely forgotten about the comment restriction until Kai Schaetzl pointed it out to me earlier in the morning. Little did I realize the harm I was causing ... how ironic a "whitelist" actually became a "blacklist". In any event the problem is fixed now. Many thanks. -- Paul (ganci at nurdog.com)