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Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the profile?

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  • Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the profile?

    Doing a migration this week where I'll be migrating 100 users from Exchange 2003 to 2010. Some remote clients are using RPC over HTTPS on the current Exchange 2003 setup with Outlook 2010.

    My question, that I can't seem to find an answer to, is will these clients auto-update their profiles when the mailbox is moved in the same way that a MAPI client will? It's no biggie if they don't, I'll just get them to connect via VPN and update them that way, but it occurred to me despite all the migrations I've done that I've never asked that question before.
    BSc, MCSA: Server 2008, MCSE, MCSA: Messaging, MCTS
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    Cruachan's Blog

  • #2
    Re: Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the prof

    Will the server name used by RPC/HTTPS remain the same?
    If so, may well pick up the new one (not an authoritative answer, though)

    Note with Exchange 2010 you will have Autodiscover so shouldn't need to VPN in to update settings (as long as they are using Outlook 2007 and above)
    Tom Jones
    MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
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    • #3
      Re: Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the prof

      External URL will remain the same. Autodiscover is unfortunately not going to work at present as we only have a web server certificate for the external hostname at present. When it expires it'll be replaced by a UCC/SAN certificate.
      BSc, MCSA: Server 2008, MCSE, MCSA: Messaging, MCTS
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      Cruachan's Blog

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      • #4
        Re: Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the prof

        You can still do autodiscover with a single name SSL certificate.

        Autodiscover is NOT optional. If you want full functionality then you need to deploy Autodiscover, either via the host name or SRV records. If that means writing off the SSL certificate, then that is what you will have to do. Time and again people think Autodiscover is optional, or only used to configure the clients at the start and that is not the case. Without Autodiscover you will not have availability, Out of the Office and other things.

        Simon.
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        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
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        • #5
          Re: Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the prof

          Thanks for the clarification, Microsoft's documentation on autodiscover (I have found) is not great and not clear at all that it is required.

          Presumably then, I need to create an SRV record externally for autodiscover that points to the current external hostname, create an internal DNS record for mail.domain.co.uk pointing to the internal Exchange Server IP address, and then reconfigure the virtual directories with the appropriate URLs?
          BSc, MCSA: Server 2008, MCSE, MCSA: Messaging, MCTS
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          Cruachan's Blog

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          • #6
            Re: Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the prof

            This explains the SRV record that is required.
            http://support.microsoft.com/kb/940881

            ONLY externally, you don't need it internally unless you have clients that are on the network which are not members of the domain.

            If your DNS provider doesn't support SRV records, then you will have to use A record and a new SSL certificate. ($60/year).

            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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            • #7
              Re: Exchange 2003 to 2010 Migration, will RPC over HTTPS clients auto update the prof

              Thanks for the advice Sembee, all seems to be working OK internally with a Host (A) record for the external FQDN and using Powershell to update the Virtual Directory URLs.

              Still waiting for a response from the DNS provider about the SRV record though.
              BSc, MCSA: Server 2008, MCSE, MCSA: Messaging, MCTS
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              Cruachan's Blog

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