Working with Routing Group Connectors

Routing Group connectors are not needed in Exchange Server 2010. However, older Exchange messaging systems still require routing groups. The first Routing Group connector between Exchange 2010 and Exchange 2003 is created for you during the installation of your first Hub Transport server role in an existing Exchange 2003 organization, and all Exchange 2010 Hub Transport servers are automatically put into that single 2010 routing group. A Hub Transport role acts as a bridgehead server in the 2010 routing group to connect with bridgeheads in the 2003 routing groups. This 2010 routing group is hidden from the Exchange Management Console, but is seen as Exchange Routing Group (DWBGZMFD01QNBJR) in Exchange System Manager, the Exchange 2003 GUI management tool. You cannot use Exchange System Manager to manage the Exchange 2010 routing group and will no longer be able to use it to manage any Routing Group connectors that include a 2010 Hub Transport server as either the source server or the target server.