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Having Problems setting up RPC over HTTP/S

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  • Having Problems setting up RPC over HTTP/S

    Greetings fellow Techies!

    I am new to Exchange 2003. I have had no formal training or experience on product and all that I know about it I have read from a book on it or in these forums.

    Here is my scenario:

    I have a fully registered domain: ( that is on my primary domain server. I have (2) MX registered records (1) and (2) mail

    My Exchange Server 2003 x32 is installed on its own domain controller named: with ( and working correctly on our network.

    The DNS is setup correctly between and

    I have OWA working inside my firewall and I'm using a SonicWall TZ-170 Enh firewall router.

    I got a couple of trial ssl certificates to use for testing connecting from outside the firewall.

    To date, I have not been able to get the connection to work outside the firewall. I do have my firewall configured to allow mail in/out from the network. If I connect from outside the firewalll with VPN, it works. I am lacking something in the setup I think. I have followed 2 different RPC over HTTP guides in setting it up but still no cigar.

    Anyone have some advice or an idea where I might look to resolve this.
    Last edited by Evisscerator; 28th February 2008, 15:48.

  • #2
    Re: Having Problems setting up RPC over HTTP/S

    Does OWA work on port 80 (HTTP) from the outside?

    Does OWA work on port 443 (HTTPS) from the outside?

    Do you have an SSL certificate?

    Do you get a browser warning when you connect from outside via HTTPS to OWA?

    Daniel Petri
    Microsoft Most Valuable Professional - Active Directory Directory Services


    • #3
      Re: Having Problems setting up RPC over HTTP/S

      I cannot use Port 80 and 443 from outside the firewall to access OWA.
      I have an SSL Certificate from Thawte and one from Comodo.

      I'm pretty sure the problem is in the firewall setup.


      • #4
        Re: Having Problems setting up RPC over HTTP/S

        Have you open ports 80 & 443 and forwarded them to the Exchange Server?
        Joined: 23rd December 2003
        Departed: 23rd December 2015