IMPA Logon Failure

Posted on 2013-05-24
Last Modified: 2013-06-03

I have Exchange Server 2003 and wish to allow a user to connect to his email account using IMAP.

When I add all the settings in Outlook and use the domain administrator account to logon it works perfectly. However as soon as I change the user name to a user on the domain the logon fails and the user name and password box keeps popping up.

I have added the user to the Domain Admins and Administrator Groups and it still does not work.

What am I missing?

Question by:JayHine
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LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39194522
Exactly what format are you entering the username in?
The group membership shouldn't matter and I would encourage you to take the user out of those groups.


Author Comment

ID: 39194552
I have tried both domain\user and just user
LVL 63

Accepted Solution

Simon Butler (Sembee) earned 500 total points
ID: 39194591
That is the problem then.
The format is


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Author Comment

ID: 39194647
I am sorry but I don't understand why it works using the administrator in the format I have but fails on the user. The port must be open for it to work at all.

When logging on as the administrator I use domain\administrator?
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39194729
That will be because you are using the administrator account. There will almost certainly be a local account called administrator and on most servers I see it will have the same password as domain\administrator.

You cannot compare the behaviour of the administrator account with anything else, because it is a "special" account.


Author Comment

ID: 39200452
I am sorry I still am unclear what the syntax for domain/account/alias  would be for a normal user.

What is the alias as I have tried domain\logon username\email alias (address).
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39200476
Alias is on the properties of the user account in ADUC. It often matches the email address, but not always. The EMAIL address is NEVER used, because Exchange doesn't understand it. The only time an email address can be used is when the UPN on the network matches.


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