I am quite new to Perl but have a little experience. If anyone can help me with this particular problem. I have an auto mail set up for a client. The problem I am having is when trying to send mail to an aol or hotmail account I receive the -6 error code. Which is "local user $to unknown on host $smtp_server". Any ideas on how to get around this. I am not having problems with any other e-mail accounts.