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Migrating to Exchange 2010, mail not working

Posted on 2010-08-28
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Last Modified: 2012-06-27
I am in the process of migrating from Windows 2003 Small Business Server to Windows 2008 R2/Exchange2010.

I installed the new Exchange 2010 server using the typical install. After the install, I created a new send connector so I can send email directly from the 2010 server. I also edited the security settings on the receive connector to allow anonymous connections.

I migrated over one mailbox and tested sending and receiving email. I can send email to the internet but not internally. I also cannot receive any email either internally or externally. All email from the Exchange 2003 server still works fine.

Am I missing a connector or do I need to modify an existing connector?  
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Question by:AceIT
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Expert Comment

by:Glen Knight
ID: 33549893
Check the default virtual SMTP connector on the SBS 2003 server, as per my article here: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_3044.html

Also check you have redirected port 25 for SMTP to the Exchange 2010 server fro m your router/firewall.

You may also find my migration guide here useful: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_2881.html
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Author Comment

by:AceIT
ID: 33561720
I read through the migration guide and everything looks correct. I also checked the items you suggested but they are all correct also.

One thing I am noticing is that on the default SmallBusiness SMTP Connector, in the Source Server tab, the Hub Transport Server list is empty. If I click on add, the local hub transport server shows up, but when I select it and click apply, I get the error message: "Source server (server name) isn't in the connectors source routing group."

What server should be in that list? Why do I get that error?
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Author Comment

by:AceIT
ID: 33561767
I am also getting this error in the application event log:

Event ID: 5015

Microsoft Exchange cannot find a route to the source transport server or home MTA server CN=SDAIHCSVR,CN=Servers,CN=first administrative group,CN=Administrative Groups,CN=SDAIHC,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=sdaihc,DC=local for connector CN=SmallBusiness SMTP connector,CN=Connections,CN=first routing group,CN=Routing Groups,CN=first administrative group,CN=Administrative Groups,CN=SDAIHC,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=sdaihc,DC=local in routing tables with timestamp 8/30/2010 7:00:49 PM. Microsoft Exchange is ignoring the source transport server.
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Accepted Solution

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AceIT earned 0 total points
ID: 33563383
I figured out what the problem was. When I did the Exchange 2010 install, it never created the routing groups between the 2010 and 2003 servers. I created them manually and the mail flows fine now.

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by:AceIT
ID: 34532894
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