IMPA Logon Failure

Hi

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?

Thanks
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Optima SystemsNetwork EngineerAsked:
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Simon Butler (Sembee)Connect With a Mentor ConsultantCommented:
That is the problem then.
The format is

domain/account/alias

This article explains how to verify the connectivity using telnet:
http://support.microsoft.com/kb/189326

Simon.
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Simon Butler (Sembee)ConsultantCommented:
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.

Simon.
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Optima SystemsNetwork EngineerAuthor Commented:
I have tried both domain\user and just user
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Optima SystemsNetwork EngineerAuthor Commented:
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?
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Simon Butler (Sembee)ConsultantCommented:
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.

Simon.
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Optima SystemsNetwork EngineerAuthor Commented:
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).
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Simon Butler (Sembee)ConsultantCommented:
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.

Simon.
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