We had two companies each had their domain their exchange 2003 server all under the one subnet. One of the companies seperated and copied all their exchange mailbox outside our domain/subnet and their email in/out working fine. However the server with their domain /exchange still running here and we can't send them emails any more as it's trying to go through our server to send and that doesn't work anymore as their DNS records moved. I have tried to stop their exchange server services but that still didn't help all the emails are being bounced back undeliverable. Any ideas of how to stop the email going internally to the other company rather than externally?
No announcement yet.
seperation of two companies