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  • 2 exchanges server on same network

    Setup

    Server A
    192.168.1.200
    Windows server 2012
    Exchange 2007
    AD for domainA.com

    Server B
    192.168.1.201
    windows SBS 2011
    Exchange 2010
    AD for domainB.com

    ok so when I try to send an email from either domains the email cannot be reached, I try to set the DNS to point the servers to each other but no good result.

    Any idea or help will be appreciated.

  • #2
    Re: 2 exchanges server on same network

    In order to send email to domainA.com or domainB.com you need to have MX records for each domain that are resolvable by the other domain. When you send an email from domainA.com to domainB.com, domainA.com needs to find the MX record for domainB.com in order to send the email. My guess is that you don't have DNS set up correctly.

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    • #3
      Re: 2 exchanges server on same network

      Originally posted by joeqwerty View Post
      In order to send email to domainA.com or domainB.com you need to have MX records for each domain that are resolvable by the other domain. When you send an email from domainA.com to domainB.com, domainA.com needs to find the MX record for domainB.com in order to send the email. My guess is that you don't have DNS set up correctly.
      Do you know any tutorial that can help ?

      Comment


      • #4
        Re: 2 exchanges server on same network

        what exactly do you want to learn about dns?
        I'd assume someone working with multiple exchange servers already has some knowledge of DNS..

        you would find plenty of training material in the Trainsignal library that would cover dns as it relates to AD and exchange... even jusgt some basic dns stuff in there.

        Personally - I learnt using the linux DNS howto
        Please do show your appreciation to those who assist you by leaving Rep Point https://www.petri.com/forums/core/im.../icon_beer.gif

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        • #5
          Re: 2 exchanges server on same network

          There are three ways to do this.

          1. Send Connector.
          The address space would be the other domain and then set it to use a smart host and enter the internal IP address in the wizard. Then DNS doesn't come in to play.

          2. Split DNS single host replacement.
          This is where you configure your internal DNS with a zone for the single host that matches the host name of the MX record. So the MX record itself comes from the public DNS records, but the host name comes from internal.

          3. Full zone replacement.
          You create a zone for the remote domain, add in MX records. However you also have to add in every other host that is on the internet, such as Autodiscover, www, ftp (if used) and anything else, plus maintain it.

          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


          • #6
            Re: 2 exchanges server on same network

            Thank you, I appreciate the advice it help a lot.

            Originally posted by Sembee View Post
            There are three ways to do this.

            1. Send Connector.
            The address space would be the other domain and then set it to use a smart host and enter the internal IP address in the wizard. Then DNS doesn't come in to play.

            2. Split DNS single host replacement.
            This is where you configure your internal DNS with a zone for the single host that matches the host name of the MX record. So the MX record itself comes from the public DNS records, but the host name comes from internal.

            3. Full zone replacement.
            You create a zone for the remote domain, add in MX records. However you also have to add in every other host that is on the internet, such as Autodiscover, www, ftp (if used) and anything else, plus maintain it.

            Simon.

            Comment

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