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Install Exchange Server 2016 in existing Windows Server Essentials 2016 network

In this tutorial, we will install Exchange Server 2016 instead of using Office 365. An on-premise Exchange Server gives you the same functionality and flexibility as you previously had with your SBS 2003, 2008 or 2011. The Exchange Server will be installed on a separate member server in your domain because it cannot be installed on Windows Server 2016 Essentials, it is not supported.

The difference between the good old SBS and the new situation is that you need two servers and in most cases, those will be virtualized on one Hyper-V Host. If you want to read more on this subject go here How to install and configure Microsoft Hyper-V Server 2016. That tutorial explains how to install the free Hyper-V 2016 Server.

Understanding network layout and IP schema’s

Just to better understand how our network looks like I have made a little network drawing. Our network has a switch and a router. The router is also used as a DHCP server and offers also DNS functionality. The router forwards traffic on port 80 and 443 to the IP address of the Windows Server Essentials 2016 and on port 25 traffic is forwarded to the IP address of the Exchange Server 2016. I write ‘forwarded’ but depending on the device it could also mean ‘natted’ or in the case of a proper Firewall you would publish services to the Internet. How you configure your router/firewall is up to you.
Understand network layout

This is a typical ‘one public IP address’ setup found in most small businesses. Normally you would need two public IP addresses to accomplish what we do but with the Application Request Routing app we are able to route traffic for ‘mail. server-essentials.net’ to the Exchange Server 2016. Traffic for ‘remote.server-essentials.net’ will still be served by the RWA applications on the Windows Server Essentials 2016

An overview of the ports to be opened

Router port Destination IP Destination port
25 (SMTP) Internal IP of the on-premises server that is running Exchange Server 2016 25
80 (HTTP) Internal IP of the on-premises server that is running Windows Server Essentials 2016 80
443 (HTTPs) Internal IP of the on-premises server that is running Windows Server Essentials 2016 443

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About www.server-essentials.com 

www.server-essentials.com is founded by Mariette Knap, a Dutch Microsoft MVP. www.server-essentials.com is a community for IT Consultants and Business Owners who, themselves, take care of the IT infrastructure and Employees who do that little extra in the company to keep things running. Our forum is for discussing all things ‘IT’ and more.  Our documentation is top notch and written by and for the community.

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