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.