Announcement

Collapse
No announcement yet.

Exchange 2003 with a Dynamic ISP address?.

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Exchange 2003 with a Dynamic ISP address?.

    Can anyone help with this?. I will be moving the company over to a Domain based infrasctructure with Exchange 2003 as the mail client. At present the internet access is provided with a dynamic Ip address which changes all the time. Can we run exchange 2003 with an dynamic address for the Internet on our router? or will we need a fixed IP address from our ISP?. Due to the nature of our business we need to be running on the dynamic Ip address.

    Any ideas would be apprieciated.

  • #2
    Re: Exchange 2003 with a Dynamic ISP address?.

    Having a dynamic IP address on Exchange is not reccomended..Since ur MX records would be pointing to ur IP address each time any change in IP address has to be replicated to DNS manually.Moreover most of the domains these dayz reject mails from dynamic IPS...

    If we donot have any option and have to go ahead with a dynamic IP...I would suggest to configure a SMarthost for sending mails and use POP accounts..

    Regards

    Fazal
    Fazal Zaidi
    MCITP-Windows 2008,Exchange 2010,MCTS-Exchange 2007,2010,Lync 2010,MCSE-2000,2003,MCSA-2003,2008,2012,MCP,MCSE -Messaging 2013,ITIL

    Comment


    • #3
      Re: Exchange 2003 with a Dynamic ISP address?.

      Would having another adsl line with a FIXED IP from the ISp and another router for Exchange work, and then have the router on the other line with the dynamic address to act as a proxy in internet explorer?.

      Comment


      • #4
        Re: Exchange 2003 with a Dynamic ISP address?.

        Normally yes, but there are work arounds.
        In order to get mail to your organisation from the internet, you need an MX record.
        This MX record point to the SMTP access point for your arganisation.

        Now if your public ip changes, the MX record would need to be updated in order to recieve mail on the updated address. And due to TTL there is always a risk you would loose mail in case of a new IP. Besides updating the MX record requires ussualy a human intervention.

        Now the work arround is an SMTP Smart host on the internet, and some peace of software that updates the IP of the SMTP connector on the smart if the IP has changed. I know for example that www.noip.com and www.DynDNS.com proides these kind of services,

        You install a piece of software (update agent), that monitors your IP address. As soon as the IP changes, the agent will sent a notification to the smarthost that the IP has changed. The smart host updates the SMTP connector for your domain to the new IP. In case that your server is not reachable from the internet, the smart host will keep trying to conect to your exchange server to delivre the mail. As long no connection has been made, mails are stored on the smart host.

        Another way is to let the ISP host your mailboxes, and pop these mailboxes through your Exchange server. GFI Mailessentials provides and POP3 connector for Exchange.
        Last edited by Killerbe; 21st May 2008, 12:23.
        [Powershell]
        Start-DayDream
        Set-Location Malibu Beach
        Get-Drink
        Lay-Back
        Start-Sleep
        ....
        Wake-Up!
        Resume-Service
        Write-Warning
        [/Powershell]

        BLOG: Therealshrimp.blogspot.com

        Comment


        • #5
          Re: Exchange 2003 with a Dynamic ISP address?.

          Exchange on a dynamic IP address is a piece of cake - as long as the ISP allows port 25 inbound.
          http://www.amset.info/exchange/dynamicip.asp

          You will have to send out email via your ISPs SMTP server, as most other servers will not accept email directly delivered from your server.

          Never heard of a business that needs to run on a dynamic IP address before... unless they have something to hide.

          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: Exchange 2003 with a Dynamic ISP address?.

            The Exchange server itself will be on a Fixed IP address and the ISP IP will be dynamic for the internet access. So will that still work?.

            Comment


            • #7
              Re: Exchange 2003 with a Dynamic ISP address?.

              What you are running internally doesn't matter. When I am making references to static and dynamic IP addresses I am only interested in the internet. Everything else is under my control.

              Exchange on a dynamic external IP address will work fine.

              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

              Working...
              X