I am implementing Exchange 2003 into our organisation but don't want to migrate everyone at the same time. Currently we have 60 users on Kerio Mailserver and to start with i want to be able to ensure that the config is right before i start the migration.
So far Exchange is in and i have created my new mailbox. It will send email to external domains but when i try to send to an internal address it is being bounced with 'The email account does not exist at the organisation' as it is only looking at the exchange box. How do i get Exchange to forward these unresolved recipients out to the internet or directly to my Kerio Mailserver?
Any help appreciated.