troubleshooting Question

Removing first Exchange 2010 Hub Transport/Client Access server from a mixed 2003/2010 Environment

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erndog5800 asked on
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    We are running a mixed environment of Exchange 2003 and 2010.  All users have been migrated to 2010, but for a few different reasons we are still using our 2003 bridgehead for inbound/outbound mail for another few months.  

  There are routing group connectors in place so that the 2003/2010 environments can pass mail to one another.  

   There are three client access servers - 2 servers are in a CAS array and the 3rd is the first server that we built in the 2010 environment.  More of a test server, we'd like to extricate it from the environment. It is running, hub transport, client access, and mailbox, but it is not a member of the CAS array or the DAG.  

  The challenge here is that this server is the target and sender for the routing group connector between 2003 and 2010.  In other words, all traffic on Exchange 2010 bound for the internet flows through this server on its way to the 2003 bridgehead.  All inbound traffic destined for Exchange 2010 flows through this server as well.  

  I want to remove this server from the organization and make one of the members of the CAS array the designated machine to talk to the 2003 bridgehead.  Is this just a matter of creating a new bidirectional routing group connector and then removing the old one?  

 Anything else I should be considering?  Remember,  this is the first Exchange 2010 box in the organization.  

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