I have been having trouble with getting email between the EXCH 2007 server and the EXCH 2003 server. The 2007 servers are set up as 3 servers with the CAS/HUB/Edge separated. We have only a single 2003 Exchange server. It was suggested that I remove the RG connector that was set up and put in two one way connectors. I have not found anything for the shell commands to do that except that bidirectional is set to TRUE. My experience with the shell has not been great so if someone has these commands and any additional information/links would be appreciated. I was also told that the send connector on the HUB server is not part of this issue. Thanks in advance.

From the link: http://technet.microsoft.com/en-us/library/aa997292(EXCHG.80).aspx The command: New-RoutingGroupConnector -Name "Interop RGC" -SourceTransportServers "Ex2007Hub1.contoso.com" -TargetTransportServers "Ex2003BH1.contoso.com" -Cost 100 -Bidirectional $true -PublicFolderReferralsEnabled $true This will actually create the two connectors on the 2003 side, one for each routing group. As far as your send connector goes, it could be causing the issue if you have a send connector defined on 2003 and 2010 with the same address space and same cost. I have seen routing loops with this. Also make sure the Default SMTP Virtual Server on the 2003 server does not have a smarthost defined. This will also cause issues with 2003-2007 interop.Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

What trouble are you having?

You could always just run new-routinggroupconnector And then press enter and follow the prompts. That will create a basic connector one way. Then run it again and swap the servers round. Make sure that you use a different name though. Simon.Simon Butler, Exchange MVP. http://blog.sembee.co.uk , http://exbpa.com/

You could always just run new-routinggroupconnector And then press enter and follow the prompts. That will create a basic connector one way. Then run it again and swap the servers round. Make sure that you use a different name though. Simon. Simon Butler, Exchange MVP. http://blog.sembee.co.uk , http://exbpa.com/ That's one of the problems with creating a bidirectional RGC. The name isnt explicit enough and you have to use the identity alias to modify it.

Hi steve, Any update for your issue? If you confirm the issue caused by the connector, you could follow above to new one, but I would suggest that you describle the issue more detailed here; and analyze why the issue occur, verify what the problem with the default connector between the exchange 2003 and exchange 2007, whether you have not create it when you deploy the exchange 2007? Regards! Gavin