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Receiving Email Exchange 2010

I am having a problem with our Exchange 2010 and Exchange 2003 coexistence.  Our exchange 2003 server has been in place working perfectly.  I just added a Exchange 2010 server to the domain.  I added one test mailbox .  I can send email internally to a 2003 mailbox and externally to yahoo account but can’t receive email into the test mailbox(2010) both internally from a 2003 mailbox or externally.
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richfield2008
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richfield2008
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Mohammed TahirMicrosoft Exchange and O365 AdministratorCommented:
-- Make sure that you have a routing group connector between the Exchange 2003 and 2010.
Get-RoutingGroupConnector| FL

-- Also make sure that you don't have smart host configured on the SMTP virtual server.

-- If still facing issue  delete RGC between Exchange 2003 and 2010 and recreate it using the New-Routinggroupconnector command.

-- Also ensure you are successfully able to telnet exchange 2010 server from 2003 server on port 25.


Tahir
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richfield2008Author Commented:
Thank you for responding.

Yes I do have a routing group connector in place.

I do have a smart host configured on the SMTP virtual server (2003) but i also set it up on the 2010 server under Organization configuration -- Hub Transport --Send Connectors.  Do you think that this could be my issue?  If so, I am using a third part to scan my email before it is sent to my server.  I thought setting it up on both servers would resolve this problem.    

I did this step via Microsoft Technet a couple of days ago as i thought this may be the issue.   RGC between Exchange 2003 and 2010 and recreate it using the New-Routinggroupconnector command.

I can telnet successfully to the exchange 2010 server from exchange 2003 server.
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Mohammed TahirMicrosoft Exchange and O365 AdministratorCommented:
If you have a smarthost defined in the Default SMTP Virtual Server, that means that ALL emails are sent to this smarthost by default, even intra-org.  This setting is usually only used in a one server deployment of Exchange.  With a seperate SMTP connector, you can define namespaces and routes appropriate to your Org.  The SMTP connector is used to control outbound email from your org.  Now with Exchange 2003-2010, all intra-org emails will flow through the default Routing Group Connectors created when 2010 was installed.


Tahir
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