IIS 7 and Above
URL Rewrite Module
Proxy to redirect all requests to an internal Linux server that handl...
Re: Proxy to redirect all requests to an internal Linux server that h...
Aug 10, 2019 01:47 AM|Rovastar|LINK
ARR can route your requests through.
Point the IP to your new ARR machine.
The website farm (even a farm of 1 server) should be straight forward, I would terminate the SSL cert on the ARR though (nd offload the SSL there)
I haven't run ARR as a proxy to Exchange but this looks like what you need to follow.