Exchange 2010 Routing Connector between Exchange 2010 and Exchange 2003 WAS NOT created and configured during installation


After following all the Prerequisites for adding an Exchange 2010 SP1 Server to a clients Exchange 2003 SP2 organisation the initial install seems to have gone really well… my next stage was to configure replication between both of the servers for the usual public folders and enable mail flow between both boxes…. however I realised that nothing was replicating and mail was not flowing…

After a bit of research I found that the routing group connector was not configured as part of the install process so to create i found the following Exchange PowerShell commands solved the problem.

New-RoutingGroupConnector -Name “2010-2003” -SourceTransportServers “” -TargetTransportServers “” -Cost 1 -Bidirectional $false -PublicFolderReferralsEnabled $true

and then the other way

New-RoutingGroupConnector -Name “2010-2003” -SourceTransportServers “” -TargetTransportServers “” -Cost 1 -Bidirectional $false -PublicFolderReferralsEnabled $true

I’m not sure why the routing groups were not created on the initial install as they are normally created automatically… but for now this solved all my problems for replicating data between the two Exchange platforms.

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