NGINX Reverse Proxy for MS EXCHANGE

I require the config/s to create a working Nginx Reverse proxy to fully support Microsoft Exchange 2010 or later. Things expected at the end from the selected freelancer / List Nginx modules required to allow function / Provide Nginx conf file/s to host reverse proxy / Minor support incase things are not quite right. We have wildcard SSL, we have centos7 ready, we have existing 2010 exchange environment already functioning. No freelancer will be allowed direct access so I expect you have successfully done this before or willing to provider followup support if needed until working. I don't expect to spend more than a hour researching whats wrong after the Nginx conf files are provided. I personally have many years of linux production experience, just not in Nginx. Researching MS Exchange RPC over HTTPS connection issue eliminates using apache reverse proxy (tested, RPC connections fail) In summary, I expect users on mobile devices to connect via MS ActiveSync, and users on Outlook Desktop computers to connect via Outlook Anywhere over https as they do today (currently direct to exchange through firewall) but with nginx in between the external user and the Microsoft Exchange server.