Ok - I have a pretty crazy one here .... I have a system that for reasons too lengthy to get into here, needs to send mail to a very bogus email address - something like <blah blah>@realbogus.dl I need the SMTP server to accept such mail for the realbogus.dl domain, and then based on address (the <blah blah> part), send it to the real recipient. As a test I got exchange to do this by doing the following: Tell exchange to accept domain realbogus.dl Tell exchange to accept mail from the server that is sending it this mail make a new MailBox for each bogus email address <blah blah1>@realbogus.dl .. etc make a custom recipient of type "internet email address" - for each real recipient address. Go into each new Mailbox and set the delivery options to an alternate recipient which is the appropriate custom recipient mail address. I'd like to offer an alternate solution with Linux - just a smtp server running on a small box who's only job is to do this little translation and pass the mail along. something fast to set up and easy enough for a monkey to add more "email translations".....