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Exchange 2010 coexistence Routing Groups

Posted on 2013-06-22
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Last Modified: 2014-02-11
Hi,

 In my existing setup, I have one exchange 2003 bridgehead which accepts and send all traffic to and from the internet and then three other Exchange 2003 on other sites which all route through this bridgehead.  I am soon replacing the existing bridgehead with an Exchange 2010 server but wanted to ask what way the routing groups will be setup to allow the other three existing Exchange 2003 servers to send/receive mail (between the other exchange servers and to/from the internet).

I setup a test connector between one other 2003 sites and the 2010 exchange (soon to be bridgehead) and the test mail I sent just continued to go via the existing bridge head.  What am I missing?

Cheers
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Question by:minniejp
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Author Comment

by:minniejp
ID: 39268993
Any ideas?
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Steve earned 500 total points
ID: 39271210
I like a challenge, particularly when everyone else avoids it :-)....

So to confirm, you are replacing the main 2003 server that handles all incoming/outgoing mail on behalf of your branch servers?

Have you followed any particular guide or plan for this?

Assuming the new 2010 server is setup and can see the other servers by name etc?

To see what connectors are already in place, use:
Get-RoutingGroupConnector

Open in new window


You'll need the following command to set up new connectors:

New-RoutingGroupConnector -Name “Nameofconnector” -SourceTransportServers “Exch2010.domain.com" -TargetTransportServers “Exch2003.domain.com” -Cost 10 -Bidirectional $true -PublicFolderReferralsEnabled $true

Open in new window


Amend the connector name, server names & costs as you see fit.

concentrate on getting mail flowing internally before you consider amending incoming/outgoing flow.

to test, use (or create) a mailbox on each server and try sending between them to confirm all servers can see each test mailbox.
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Author Comment

by:minniejp
ID: 39274064
Great glad to hear it!

Email flow is like this:

Windows 2003 Exchange - Bridge Head Handles all mail bound for internet and all mail coming in from the internet.  It then sends to the mailbox in question regardless of what Exchange 2003/2010 server the mailbox resides.


Now that mail is working on the Exchange 2010 server that will replace the Exchange 2003 Server, as the 2003 exchange is the bridgehead, I need to make sure once it is gone, all mail still works.  The Exchange 2010 will be the main exchange accepting mail from the internet and sending mail to the internet.  Its the internal flow that I am now worried about.  I have created a connector between the Exchange 2010 box and one of the other Exchange 2003 boxes but when I check, the main is still going through the current bridge head and then to the Exchange 2010 server....I need it to go straight to the Exchange 2010 server and bypass the current bridge head.....

Maybe this is now the correct thinking but the current bridge head will be disappearing and I have yet to upgrade the other Exchange 2003 servers to Exchange 2010.

Cheers!
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Author Comment

by:minniejp
ID: 39276271
Any thoughts?  Surely other people have had this setup...
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Expert Comment

by:Steve
ID: 39278048
have you created the connectors as advised and have to tried to send an internal mail between mailboxes on each server to check connectivity internally?
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Author Comment

by:minniejp
ID: 39279637
Yes, I have created a connector between one of the Exchange 2003 boxes and the Exchange 2010.  When I send a test email, the email goes to the original Exchange 2003 Bridgehead and is then delivered to the Exchagne 2010 server.  I went the mail to bypass the bridgehead.....
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Expert Comment

by:Steve
ID: 39280595
as advised above, set up connectors for all servers before performing your tests.

also, check if you have the 23003 server set as a 'front end' server as this may be forcing it to be used for all traffic regardless.
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