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Migrating from 2007 to 2010 with DAG

Posted on 2013-06-06
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Last Modified: 2013-07-15
Our environment has 5 exchange servers. 1 is a mailbox. Two serve as CAS and one is strictly a HUB transport server.

As soon as the new CAS servers (2 of them) were built with 2010 and patched the log files shows the transport sever (2007) trying to send mail to them. The only thing I can see in the old config that I think would cause this is an internal SMTP interogranization send connector.

I need to make sure I can have these boxes online so I can build the environment without messages being stopped or failing because they are trying to access boxes not in production yet. Please assist.

The new environment is 2008 R2 fully patched with all new servers (2 CAS and 3 MBX) all running 2010 exchange sp2 rollup 6. Clients are 2007 and 2010 office.

Thank you
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Question by:MXadmin
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by:Amit
ID: 39226026
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Author Comment

by:MXadmin
ID: 39226069
That does not address anything in the question I have asked.

The CAS server for 2010 cant be powered on, when they are the old trasnport/hub server tries to direct mail towards them. I need to be able to have the machines powered on in order to configure them and test the new builds.
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by:Amit
ID: 39226095
CAS role doesn't play any role in mail routing...It seems you have install Hub role also. If so, you can remove Hub role for the time being.
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by:MXadmin
ID: 39226153
The two new server are doing both CAS and HUB/Transport services. But if not receive or send connectors are configured why is this happening? I also had not at that time installed the exchange software yet on the mailbox servers. I need to be able to have the CAS/HUB boxes for 2010 online while I configure them. Whats the easiest way to do this? I also now have a hot head client becuase they are claiming for the 20 minutes the servers were online the mail was sent, verified through message tracking, but never delivered and they want to know where the mail would have went to as it was not delivered. Exchange wouldnt just discard this would it?
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by:Amit
ID: 39226219
check tracking logs and queue viewer.
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Author Comment

by:MXadmin
ID: 39226252
The only thing I see in the tracking logs is showing the message being sent to the new CAS/HUB server but nothing afterwards. The message id abc123 abc456 neither of those appear again after it shows it was sent to the new boxes
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by:Amit
ID: 39226263
Is this a External message? or Internal?
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by:MXadmin
ID: 39226314
These are internal messages for the most part around 200 messages.
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by:Amit
ID: 39226360
okay open EMS and run

Test-servicehealth
Get-queue

both from Exchange 2007 and 2010 and post it
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Author Comment

by:MXadmin
ID: 39226370
Well the 2010 stuff I have powered off since mail stops flowing when I turn them on. Howerer the 2007 shows client access and hub tranport both true for serices running and 7 messages under messagecount for in the que.
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by:Simon Butler (Sembee)
ID: 39227381
As soon as you introduce an hub transport server to the domain, Exchange will use it. Nothing you can do to stop it other than stopping the transport service. It may even prefer it, because it is a higher version.

As long as you have Send Connectors in place correctly, then Exchange should route the email back to those servers for sending to the internet. You need to ensure that any restrictions on the Receive Connectors on the existing servers allow the Exchange 2010 servers to connect.

Any reason for deploying Exchange 2010 SP2 rather than straight to SP3 for new builds?

Simon.
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MXadmin earned 0 total points
ID: 39227442
Simon,

On the new server there are no receive, no send and no transport rules installed, configured or enabled. Nothing at all. That's why this makes no sense.

SP3 does a schema change and the client is not looking to have that done otherwise sp3 with the newest rollup would be the choice I would have made.
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Author Closing Comment

by:MXadmin
ID: 39325990
Issue was with rogue receive connector limiting ip range of exchange server with wrong authentication method
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