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Exchange 2010 and 2003 working togeher

JaseCara asked
I just joined an Exchange 2010 server to an existing 2003 domain/exchange environment.

The new 2010 server is working fine and I can transfer mailboxes to it but when I do those mailboxes cannot longer receive mail (internal or external). They can send out though.

Ultimately once I get all the mail boxes and public folders off of the 2003 server I will just redirect the MX records so they hit the 2010 box but right now I still have over 40 mailboxes on the 2003 server.

I was hoping I could stage this and move mailboxes one at a time but I need to make sure the users that move are fully functional on the 2010 server. I thought there was a way to have the 2003 server receive the mail but have it send the messages to the mailboxes on the 2010 server. Is that possible?

I have looked at the message tracking and when I message is received on the 2003 server for a user that is on 2010 it says – “Message Routed and Queued for Remote Delivery” but it never ends up in the user’s mailbox.

I have tried setting up receive connectors but I cannot get it to work.

If anyone can help with this or point me in the right direction it would be greatly appreciated.

Thanks in advance.
Watch Question

System Architect
Setup a routing group connector between 2003 and 2010 on your 2003 server with your 2010 server as the remote bridgehead.


Got it. That worked like a champ! I was looking for that but Exchange was not showing Routing Groups but I found the check box.

Thanks for the help!