We are testing and deploying a Windows 2016 DC with a separate Windows 2016 Exchange server 2016.
The Windows DC has the Windows Server Essentials role installed for our external people. The DC is working fine and we can remote connect to RWW no problem
The issue is with our Exchange Server. We have installed everything OK - we can send and receive email through exchange to internal and external contacts.
The problem we are having is accessing OWA from outside our network - which is a critical part of the deployment.
Internally we can access web-mail with the URL https://kits-exchange/owa
however we cannot reach Exchange 2016 OWA from outside network.
Looking at the issue we can see that our DC's IIS is hosting the default website giving us access to RWW via port 443 however on our Exchange server this is hosting its own default website and Exchange-Backend website on its IIS - this is on port 444 and 81
Question is - How do we reach OWA / webmail from outside out domain network.
We have a configured Domain Name that points to the fixed IP of the broadband connection
We have a valid SSL Certificate bound to our DC for HTTPS remote access
We have followed the principle the Exchange should be installed on a separate server
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