Hello, I need to redirect any messages sent to an external domain "x.y.com" to another external domain "z.com". The solution must not affect messages sent to "y.com". Can anyone suggest how to do using using Exchange 2003 please? I looked at the address rewite tool but it doesn't seem suited. Thanks, - ALan.

Hi Alan, I don't think you can do it with Exchange 2003 native feature,maybe you should develop a custom event sink, like "catchall" mailbox. How to create a "catchall" mailbox sink for Exchange Server http://support.microsoft.com/default.aspx?scid=kb;en-us;324021 And you can also go to Development Forum to seek the solution: http://social.technet.microsoft.com/Forums/en-US/exchangesvrdevelopment/threads Frank Wang TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.