How to login to OWA without using domain\username

Posted on 2006-04-05
Last Modified: 2008-01-09
I am trying to log in to OWA using a username only, i.e. without having to type domain\username.

Let me give you some background

Running Windows server 2003. Exchange server 2003 Enterprise SP2 (single server). We also have two logical domains, internaldomain.local, and

The exchange server is a DC for All our users are located in internaldomain.local. There is a 2-way trust between the domains.

We have 3 different methods of access from the internet to exchange :
Laptops use RPC over HTTPS
PDA's use Direct push

To use direct push for the PDA's, we need to have forms based authentication turned off - This works ok.
However, when using webmail, users are connectinc to, which tries to authenticate them. All our users are in internaldomain.local. So they have to type in internaldomain.local\username .

Is there a way of automatically authenticating to the internal domain without having to type in the domain name in the login box?

I have already tried setting the internal domain as the default domain and realm on the directory security tab on the /exchange folder.
I have also added the internal domain controllers on the "directory access" tab on the properties of the exchange server.

Any ideas how i can get round this?

Question by:beplas
    LVL 104

    Expert Comment

    The default domain/realm setting is the only one that is required - I am not aware of any other mechanism.

    Otherwise go back to using FBA. It is possible to have that co-existing with EAS. You just need to get the authentication settings correct on the virtual directory - specifically enable both integrated and basic authentication on the /exchange virtual directory - it will probably be basic only at the moment.


    Author Comment

    Close, but no cigar. The /exchange virtual directory has both basic and integrated already selected, without integrated direct push will not work. Also, the domain/realm are both set to internaldomain.local, but appear to have no effect
    LVL 104

    Accepted Solution

    I can assure you that it does work, as I have it working on four or five systems.

    The full authentication settings are:

    /exchange - basic and integrated ONLY
    /exchweb - anonymous ONLY
    /exadmin - integrated ONLY
    /public  - basic and integrated ONLY
    /oma - basic ONLY
    /Exchange-Server-ActiveSync - basic and integrated only

    With FBA you don't have to set the default domain and default realm as the FBA page deals with that for you (undocumented change in service pack 2).


    Author Comment

    Hi Simon,
    I checked the settings on each of the folders, and made one or two changes according to your list. And still i got activesync error 85010001. So i tried another PDA - and sure enough - the second one worked fine!

    Turned out to be the SSL requirement in the server settings wasn't ticked on the PDA.

    Thanks for your help, it cleared up a few issues for me.

    LVL 104

    Expert Comment

    The thing to remember is that OMA/EAS caches errors. When you get them once, it is common to get them again. I usually recommend to reset the handheld device before trying again to clear any cached information.


    Featured Post

    Looking for New Ways to Advertise?

    Engage with tech pros in our community with native advertising, as a Vendor Expert, and more.

    Join & Write a Comment

    Suggested Solutions

    Check out this infographic on what you need to make a good email signature that will work perfectly for your organization.
    To show how to create a transport rule in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Rules tab.:  To cr…
    This video discusses moving either the default database or any database to a new volume.

    754 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    20 Experts available now in Live!

    Get 1:1 Help Now