I've tried to migrate an exchange server 2007 to the newer 2010 on another server. I have installed the 2010 roles one after another (CAS -> Hub Transport -> Mailbox).
After installing each of these roles I configured these with the same settings as shown in Exchange 2007.
Afterwards I moved my own mailbox to the newer version of the exchange server.
Now I am experiencing problems with the message flow, the following works:
- Sending a mail from Exchange 2010 via external SMART-Host to Exchange 2007
- Sending a mail from Exchange 2010 via external SMART-Host to any
but the following scenarios doesn't seem to work:
- receive any email from Exchange 2007
- receive any emails from outside the exchange organization
In the queue manager in Exchange 2007, then I see one queue called Hub version 14. This queue everytime fails with a DNS query failed error.
I hope somebody can help me with my problem. ;-)
Kind regards, Alexander