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Yea I got to try and change the certificate. &nbsp;The certificate is formed on:<br />
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HCLSVR01.HealthcareLightin<wbr />g.local, but it should be for mail.healthcare-lighting.c<wbr />om
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I'm trying to get OWA on my external ip (71.116.30.98), my host already has mail.healthcare-lighting.c<wbr />om pointed to (71.116.30.98). &nbsp;It is working internally correctly.<br />
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I setup the web server certificate for mail.healthcare-lighting.c<wbr />om and I have installed in the personal folder and trusted sites folder, while installing the .pfx into the personal folder as well. &nbsp;I setup ISA 2004 with the mail publishing rule and have everything set correctly. &nbsp;I think it may be a DNS problem for me, but I don't know where to go from here.<br />
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The other thing is in IIS, for the Default Web Site, I tried to change the ip address to 71.116.30.98, but the website wouldn't start when I did it.
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I'm trying to get OWA on my external ip (71.116.30.98), my host already has mail.healthcare-lighting.com pointed to (71.116.30.98).  It is working internally correctly.

I setup the web server certificate for mail.healthcare-lighting.com and I have installed in the personal folder and trusted sites folder, while installing the .pfx into the personal folder as well.  I setup ISA 2004 with the mail publishing rule and have everything set correctly.  I think it may be a DNS problem for me, but I don't know where to go from here.

The other thing is in IIS, for the Default Web Site, I tried to change the ip address to 71.116.30.98, but the website wouldn't start when I did it.

Cannot get OWA on my external ip?

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.

IIS is Internet Information Services, the web server included with Windows Server operating systems. All current versions are built on a modular architecture; modules can be added or removed individually so that those required for specific functionality are installed. The full installation of IIS includes HTTP, security, content, compression, caching, logging and diagnostics.