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This is one of the questions that I mentioned earlier:<br />
<a href="https://www.experts-exchange.com/questions/21341933/Clients-can-not-logon-to-OWA-EX2K3.html" rel="ugc">https://www.experts-exchange.com/questions/21341933/Clients-can-not-logon-to-OWA-EX2K3.html</a>
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This is one of the questions that I mentioned earlier:
https://www.experts-exchange.com/questions/21341933/Clients-can-not-logon-to-OWA-EX2K3.html [https://www.experts-exchange.com/questions/21341933/Clients-can-not-logon-to-OWA-EX2K3.html]

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My old exchange server allowed users to log in &nbsp;to webmail with the short version of their username, but for some reason my exchange 2003 server is requiring they type in the fully qualified username including the @ sign and the Active Directory domain name. <br />
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How would I set it to not require fully qualified usernames? &nbsp;The only difference I can find between the new server and the old server that worked perfectly is that the old server was a domain controller (not a recommended configuration) and the new server is a member server but not an AD controller.
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My old exchange server allowed users to log in  to webmail with the short version of their username, but for some reason my exchange 2003 server is requiring they type in the fully qualified username including the @ sign and the Active Directory domain name. 

How would I set it to not require fully qualified usernames?  The only difference I can find between the new server and the old server that worked perfectly is that the old server was a domain controller (not a recommended configuration) and the new server is a member server but not an AD controller.

Exchange 2003 webmail requires fully qualified username

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.