KB ID 0000861
Problem
The procedure for changing the user login process from domainnameusername to just username, is a little different with Exchange 2013.
Solution
1. Connect to the Exchange admin center > Servers > Virtual Directories > Select OWA > Edit.
2. Authentication > Select ‘User name only’ > Browse and select the domain > Save.
3. At the warning click OK > Windows Key+R > cmd {enter} > Run the following command;
[box] iisreset /noforce[/box]
Note: This will (by default) also change the logon method for the Exchange Admin Center.
Related Articles, References, Credits, or External Links
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