Hi Guys
I am doing a cross forest migration of Exchange 2003 to Exchange 2010. Trust, ADMT etc are working fine. All I need now in to configure mail flow between both Exchange organizations. Of course both uses the same namespace eg @contoso.com. I did an internal relay domain from E2010 to E2003.
How can I do the same from E2003 to E2010. I tried this:
https://mymicrosoftexchange.wordpress.com/how-tos/microsoft-exchange-2/how-to-configure-a-shared-namespace/
But not working.
When I reconfigure the recipient policy and setup the SMTP connector, mail stops flowing on E2003. Since part of the process is to make the E2003 Not Authoritatve for @contoso.com, seems E2003 doesnot look for the mailbox on the E2003 first and then user the Connector.
The article describes that E2003 to determine if the recipient is local first and then use the connector secondly but this is not happening
Is this process valid????????