Exchange 2010 InformationStore CN Empty in ADSI Edit...

ENVIRONMENT: Windows 2008 Domain, Exchange 2003 Front-end server, Exchange 2003 Back-end server, and a new Exchange 2010 server

We are preparing to migrate from Exchange 2003 to 2010.  I've built the 2010 box and have been familiarizing myself with the new methods of administration.  I moved a test mailbox from EXCH2003 to EXCH2010 to...well...test.  I could connected to the test box via Outlook, send and receive mail both internally and externally fine until a few days ago...now I can neither send or or receive mail to/from the test mailbox.

I am not aware of any changes that occurred on our system that would effect communication between the servers (EXCH2003 and EXCH2010), but there is definitely a mail flow problem between these machines.  Messages being sent from the test box are now queuing up on EXCH2010 with the error: "There is currently no route to the mailbox database" and messages being sent to the test box are not reaching EXCH2010.

While troubleshooting this problem I discovered in ADSI Edit that, when I drill down to CN=Exchange Administrative Group\CN=Servers\CN=EXCH2010, the InformationStore container is EMPTY.  EXCH2010 has 3 mailbox databases and should have information regarding those published at this location.  If this is not the root of my problem, this definitely appears to be a problem in and of itself.

Please advise on the best route to proceed to get this information published in AD.
guruerrorAsked:
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Adam BrownConnect With a Mentor Sr Solutions ArchitectCommented:
Yes, it did change since 2007.
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Adam BrownSr Solutions ArchitectCommented:
The database information for Exchange 2010 doesn't show up at the server level anymore. It shows up in the CN=Exchange Administrative Group\CN=Databases. This is because Exchange 2010 does not utilize Administrative groups for routing and database storage anymore. The structure of the Administrative group that the server exists in is for backwards compatibility only (Note that the Administrative Group Name that Exchange 2010 is located in is a +1 Caesar Cipher for EXCHANGE12ROCKS). So the databases not showing up there on the 2010 boxes is not related to your issue. Unfortunately, I don't have much experience working with a 2003/2010 coexistence environment, so I can't help much there. It should be noted, though, that routing in 2010 is accomplished through AD Sites and Services, so you may want to check your Sites configurations to make sure all the appropriate subnets are assigned and that everything else there is set up properly.
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guruerrorAuthor Commented:
Did that change from Exchange 2007...I was following instructions for an 07 server to verify some settings and they (Microsoft) pointed me to that location:  http://technet.microsoft.com/en-us/library/cc411329(EXCHG.80).aspx
Step 7 under "To use ADSI Edit to create the Folder hierarchies container"

Perhaps I mis-read...I'll look into more tomorrow and report back.
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guruerrorAuthor Commented:
Roger that...back to square one tomorrow troubleshooting the mail flow.  Thanks for the info!
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