Exchange Server 2013 acting as a Proxy for Exchange Server 2016 Preview

Share this:

That is a pretty cool new capability on Exchange Server 2016 Preview, a new server can be added into an Exchange Server 2013 Organization and the current Exchange Server 2013 can proxy requests to the new servers. In the past, we had to move the new servers to receive all the requests, and then those new servers would proxy the requests for legacy servers.


To test the capability, let’s use the scenario below where we have one Exchange Server 2013 and one Exchange Server 2016, each one has a mailbox as shown in the image below.


The first test is to log on using Exchange Server 2013 OWA with a mailbox that is on Exchange Server 2013 (Number6), and there is no surprises there, just works.


Here is the interesting part, using the same URL that we used before (connecting to the Exchange Server 2013) and logging on with a mailbox that is hosted on Exchange Server 2016 Preview, we have the OWA experience of the new version.


In this Tutorial we went over the new capability that allows Exchange Server 2013 to proxy requests to new Exchange Server 2016 Preview servers.

Written by Anderson Patricio

Anderson Patricio

Anderson Patricio is a Canadian MVP in Cloud and Datacenter Management, and Office Server and Services, besides the Microsoft Award he also holds a Solutions Master (MCSM) in Exchange and several other certifications. Anderson has been contributing to the Microsoft Community with articles, tutorials, blog posts, twitter, forums and book reviews. He is a regular contributor here at,, and Anderson (Portuguese).

Related Post

Exchange Server 2016 Online Training Courses Now A... Hello folks, Exchange Team published yesterday about online training available for Exchange Server 2016, and the first one is free. Here is a summary ...
Exchange Server 2016 Preview is available Today! Hello Folks, Exchange Team released the Exchange Server 2016 Preview for download Today, here is the link to download:
How to deploy Exchange Server 2016 In this Tutorial, we are going over the entire process to deploy Exchange Server 2016 server into an existing organization using the graphical user in...
Office for Mac–Preview Available Microsoft will release the final version in the second half of 2015, however you can check it out all new features on your Mac and receive regular upd...