Single User Profile for Multiple Domains

Posted on 2007-10-11
Last Modified: 2010-04-20
I would like to know if its possible to have a single user profile even though I have to log in to separate Domains.
Objective is to have a single Outlook configuration/desktop/my documents, etc.

I am not very aware of the technicalities here. But I am assuming that logging into two different domains (completely different domains - not child domains or part of a tree) will create separate user profiles. This will require me to configure Outlook for each profile, right? Including a different desktop?
I am a little confused about this.

I understand networking technology, but do not have hands-on experience. Which is why I have this question. :)
Done a few searches on the Internet but have not come across anything that was anywhere close to my question. Am hoping you guys will be able to solve my query.
Am not just looking for a solution but also some concept clarity.
Appreciate all your help. Thanks.
Question by:GeekGawd
    LVL 74

    Accepted Solution

    Since you posted this in the Small Business Server Zone, I would assume that one or more of these domains is SBS-based?  If so, you cannot achieve a single user profile for separate domains.  

    That's because in order to have a single profile, the domains would need to have a trust relationship created between them, and SBS doesn't support that.

    However, there are ways to accomplish what I think you want in other ways...  it really depends on how many domains you are talking about.

    Because in Outlook, while you can only have one Exchange account configured, you can certainly add additional IMAP4 accounts if IMAP4 is enabled on the Exchange Server you want to connect to.  (IMAP4 is preferable to POP3 for something like this because it essentially is a mirror of the Exchange Mailbox rather than downloading specific messages -- IMAP4 will also support all other Exchange folders such as Contacts, Calendar, etc).

    For file access, you can create various VPN connections as needed.  Multiple VPN Connections can be used -- each with it's own credentials.


    Author Comment

    hi Jeff,
    Yes, that is correct. The servers are Small Business Servers. I had read somewhere that trust relationships cannot be made by SBS. Was not sure about. Thanks.

    For now there will be just two domains. My gut feel would be that the Head Office will be made the root server while the branch office (just one, right now) will be made a child domain. But that, once again is subject to the administrator/boss' decision. :)

    About the simple way to login to multiple domains - I have my doubts about being able to do this one, even if we do change over to a regular Windows 2003 Server edition. I thought, a trust relationship would be the easiest and safest.  Unfortunately, this option has been not been accepted.

    You say, multiple joinings can be achieved in other ways? I would be interested in knowing what you have in mind. Let me know if we this discussion can be taken outside this forum (since my question wasn't originally about a workaround with non-SBS solutions).
    For now, given the current setup in office, doesn't look like even a trust can be created...

    Thanks for the Outlook suggestions, I will definitely put  them forward. Right now, we have  a hosted webmail service. No Exchange. Though I have suggested to implement one, earlier. :op
    Will look into the VPN file access suggestions. Never thought of that one.

    Once againappreciate all the suggestions you have made!
    LVL 74

    Expert Comment

    by:Jeffrey Kane - TechSoEasy
    Well, SBS doesn't support child domains either.  It's not designed to be used in these type situations.

    "multiple joinings can be achieved in other ways?"

    I explained those ways above.


    Author Comment

    K. Looks like SBS will have to be "demoted" :)
    Thanks a lot Jeff. Appreciate it.

    LVL 74

    Expert Comment

    by:Jeffrey Kane - TechSoEasy
    Well, you can't demote an SBS either.  You would need to buy the Transition Pack to transition out of SBS into a Standard Windows Server 2003 (

    As I had stated above, it's not designed to be used in these type of situations at all.  Take a look at for details.


    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

    Some time ago I faced the need to use a uniform folder structure that spanned across numerous sites of an enterprise to be used as a common repository for the Software packages of the Configuration Manager 2007 infrastructure. Because the procedu…
    Welcome to my series of short tips on migrations. Whilst based on Microsoft migrations the same principles can be applied to any type of migration. My first tip Migration Tip #1 – Source Server Health can be found listed in my profile here: http:…
    Sending a Secure fax is easy with eFax Corporate ( First, Just open a new email message.  In the To field, type your recipient's fax number You can even send a secure international fax — just include t…
    Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

    734 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

    18 Experts available now in Live!

    Get 1:1 Help Now