12 February 2015
Microsoft Exchange 2013 - Outlook connection problem after mailbox migration
After an Exchange 2010 to Exchange 2013 successful mailbox migration the Outlook client hangs or display the disconnected status.
The Outlook connection status (Ctrl + Right click on Outlook icon on the task-bar) display a pending connection to the old Exchange server.
Creating a new Outlook profile to test the mailbox access returns the following error message:
The name cannot be resolved. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.
Temporarily disable the Internet Explorer proxy settings or add a proxy exclusion for the exchange server name.