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Multiple Networks, Multiple Domain names, One Exchange Server 2003

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  • Multiple Networks, Multiple Domain names, One Exchange Server 2003

    Hello,

    We just aquired a smaller company(call it companyb.com) and currently they have there email being hosted by an ISP. My CIO wants to move them onto OUR exchange 2003 system(companya.com). He wants me to manage it directly. I dont have an issue with this.

    I have read many many articles about hosting multiple domains in exchange 2003 and the recipient policys, Storage groups and so forth to make it work.

    I just setup a VPN tunnel and Transitive trusts between our domain and there domain so that is working now. They can see us and we can see them.

    Here are some thoughts I was having and questions......
    1.)Change MX record for companyb.com to our exchange server companya.com
    2.)Should I edit the current default Recipient Policy to add the Companyb.com? Or create a new reciepient policy?
    3.)Create a seperate Storage group for companyb.com on fresh partion.
    4.)With the storage group being seperate and public folders. I want them to have there own GAL. I guess that would be resolved in the recieptient policy. (maybe I just answered my own question.
    5.)How will these users be able to authenticate since there in a seperate domain? Would I create users in my domain (companya.com) Change there email address to companyb.com then give that particular user access to that mailbox from the remote domain? That seems like alot of work.

    I know what I have to do, it's just clarifying it and the steps I will need to take to get it done. This is just incase I'm missing anything.

    Any help/links would be appriciated.

    Regards,

  • #2
    Re: Multiple Networks, Multiple Domain names, One Exchange Server 2003

    Here is what you need to follow. There are two methods. Method 1 and method 2.
    I prefer method 2.

    http://support.microsoft.com/kb/321721
    Thanks & Regards
    v-2nas

    MCTS 2008, MCTIP, MCSE 2003, MCSA+Messaging E2K3, MCP, E2K7
    Sr. Wintel Eng. (Investment Bank)
    Independent IT Consultant and Architect
    Blog: http://www.exchadtech.blogspot.com

    Show your appreciation for my help by giving reputation points

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    • #3
      Re: Multiple Networks, Multiple Domain names, One Exchange Server 2003

      Thanks for the post. But that isnt what I'm looking for. The companyb.com domain does not have it's own mail server. So I cant create the connector and I dont want to forward on email to there ISP.

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      • #4
        Re: Multiple Networks, Multiple Domain names, One Exchange Server 2003

        You have to create all user accounts etc on your server.
        Whether the users authenticate directly to Outlook or you use a trust depends on your domains. If SBS is involved then the users will have to authenticate to your domain when they start Outlook. Otherwise it is just the same as adding a second domain to the server, instructions are on the main site.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

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