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Exchange 2010 to Exchange 2007 mail routing

Hi,

I am currently in the process of testing my Exchange 2010 Server in preparation for a migration.

I issue I have is that I can send mails to users who are on the Exchange 2010 server to each other, but if I try to send mails to users on the legacy Exchange 2007 server, the messages are just stuck in a queue.

I have configured both HUB Transport server receive connectors to accept mail from each other, but still no joy.

I have tried telnet to each server and that works fine.

Can anyone shed any light on something I haven't done?

Help really appreciated.

Novatek

Manpreet SIngh Khatra

Are both the servers in the same domain and site ?
Did you try with Creating a RGC between Exchange 2010 and Exchange 2007 ?

- Rancy

rbadua

I second Rancy's advice. You need to create the RGC in powershell. Here is the link below.
http://technet.microsoft.com/en-us/library/aa997292.aspx

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Chris

What permissions do you have set on the connectors

novatekitsolutions

ASKER

Hi Irweazelwallis,

For Authentication - Exchange Server Authentication

For Permission Groups - Exchange Servers

Novatek

Antonio Vargas

Just FYI routing group connectors are only necessary for enabling message flow between exchange 2010 and 2003.. not 2007..

novatekitsolutions

ASKER

Hi GreatVargas,

I didn't create a Routing Group Connector, I just created a Receive Connector on 2007 and vice versa. This started the mail flow.

Antonio Vargas

Of course that is the right way to do it.

novatekitsolutions

ASKER

I removed the IP's from the Default Connector and created a specific one for Exchange 2010 with the correct permission and mail is now flowing.