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  • adding an exchange server

    Hi all,

    I tried to find information about it on TechNet and on several forums, but without success.

    My config:
    LINUX based mail gateway server in DMZ, configured to filter SPAM and forward incoming mail traffic to a single exchange 2003 server standard edition on LAN.

    Scenario:
    I want to add another exchange 2003 server standard edition, I will then move half of the 200 mailboxes which are currently hosted on the first server, to the second one.

    my qustions:
    1. once I install a second exchange server, how will incoming mail traffic work? for example, if I move a certain user from server A to Server B, does server A know what to do with mail traffic it receives from "Mail Gateway" and which is intended for that user? will it automatically route it to server B?

    2. How will OWA work? do I need to publish Server B's EXCHANGE directory or will Server A's OWA know how to "pull" the desired view from server B?


    thanks guys...
    Last edited by ronroze; 2nd August 2007, 07:50.

  • #2
    Re: adding an exchange server

    1. If you install a second Exchange server in the same routing group (and that is what you do because both servers are in the same LAN) - then you don't need to configure anything, its done automatically with AD and SMTP:
    http://technet.microsoft.com/en-us/l.../aa998095.aspx
    2. The emails from users in server A & B will route internally automatically.
    3. About OWA - If you have only one server (server A) that is published as OWA, you don't need to configre server B as well.
    If User on server B will login to the OWA server A, the OWA will show the user's mailbox according to the user's AD info.
    CNE 5, CCA, MCSE NT4.0-2003, MCSE 2003 messaging, Exchange Server MVP.
    Tzahi Kolber - IT Supervisor
    Polycom Israel.

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    • #3
      Re: adding an exchange server

      Thanks Tzahi, you've been very helpful
      Now I can set up a virtual environment and test my design.

      Comment


      • #4
        Re: adding an exchange server

        Originally posted by tkolber View Post
        3. About OWA - If you have only one server (server A) that is published as OWA, you don't need to configre server B as well.
        If User on server B will login to the OWA server A, the OWA will show the user's mailbox according to the user's AD info.
        after building a test environment, OWA is the only thing which gives me trouble.
        I have a DC and 2 exchange servers, each one holds a single test-user mailbox.
        when I log on to the OWA of the first-installed server I can access the mailbox which is stored locally on that server, but I cannot access the mailbox which is stored on the second-installed server. instead, I recieve "Internet Explorer cannot display the webpage", and the URL is "https://mydomain.com/exchweb/bin/auth/owaauth.dll"
        when I try to log on to the second server's OWA I don't even get a chance to enter my credentials before I am automatically redirected to the first server.

        since I did not use any special configuration, I guess it's a common issue.
        can anyone give me some pointers?...

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        • #5
          Re: adding an exchange server

          That sounds like pass through authentication is being used. The credentials of the user account that you are logged in as on the machine is being used.
          However if you have two Exchange servers then both servers will need to be exposed to the internet and the users will need to know which address to use to access their mailbox. The redirection will work, but only if the server's real (internal)name resolves externally.
          When a client starts looking at introducing a second Exchange server I usually recommend a third server should be introduced at the same time, as a frontend server.

          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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          • #6
            Re: adding an exchange server

            If you have two back-end servers you need a front-end server for OWA to work correctly. If you don't you will always be directed to one of the servers only.

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            • #7
              Re: adding an exchange server

              That isn't strictly true.
              If you have more than one backend server but no frontend server then to use OWA both servers have to be exposed to the internet and the users need to know which URL to use to access their mailbox.
              Exchange will direct the user to the correct mailbox automatically, but it uses the server's real name. If the server's real name is exch2.domain.local then the auto redirect will fail.

              I tend to suggest to clients that if they are introducing a second Exchange server they should look to introduce a third frontend server, but that does very much depend on the topology used.

              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.

              Comment


              • #8
                Re: adding an exchange server

                You're right. I was looking at it from the perspective of making it easy for all users (and administrators) and not having to track which user is on which server and giving each user the correct URL.

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