Hi! My list security has been breached in that someone tried to reroute listmail to a third person, only the error messages when his server would not process made me aware of this. I now want to step up on security of the list, especially I want to check out email adresses for the route the messages to them takes (as I then can check out - as in the error message - where to the mails are directed) and I wonder whether anyone among you has come up with a method to verify email adresses generally for security. I also would like to know how those among you who want secure lists go about this. Any ideas on this? Thanks ahead for your help R. Kirsch