Exchange 2013 outlook won't accept email authentication

Dear All,

I finalize migration to Exchange 2013, outlook anywhere use the same hostname internally and externally.

now when the outlook asking for username, it's won't accept the email address (me@domain.com), i should use my active directory username (me@domainlocal.com).

now i can solve this to let exchange accept the email address.

thanks
RhalaAsked:
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Simon Butler (Sembee)Connect With a Mentor ConsultantCommented:
That isn't an Exchange issue.
The email address is just an object on the AD account. To change the username to match the email address you have to add the domain to the list of UPNs (in AD Domains and Trusts), then adjust the UPN on the user account to match the email address. That will need to be done on each user account.
Changing the email address will NOT change the login unless you modify the UPN as well.

Simon.
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