Mailbox Migration from Exchange Server 2010 Hybrid with Office 365 to Exchange Server 2016

Prerequisites for Coexistence

In order to deploy Exchange Server 2016 in the existing organization first we have to make sure that Exchange Server 2010 is ready and prerequisites are satisfied.

Installation & Configuration of Prerequisites

Exchange Server 2010 required the following prerequisites in order to meet coexistence requirements;

Service Pack 3 for Exchange Server 2010
Minimum level of Roll Update is 11 (RU11)

Deploying Exchange Server 2016

Installation & Configuration of Prerequisites

Exchange 2016 Mailbox servers on Windows Server 2016

1. Run the following command in Windows PowerShell to install the required Windows components:

Install-WindowsFeature NET-Framework-45-Features, Server-Media-Foundation, RPC-over-HTTP-proxy, RSAT-Clustering, RSAT-Clustering-CmdInterface, RSAT-Clustering-Mgmt, RSAT-Clustering-PowerShell, WAS-Process-Model, Web-Asp-Net45, Web-Basic-Auth, Web-Client-Auth, Web-Digest-Auth, Web-Dir-Browsing, Web-Dyn-Compression, Web-Http-Errors, Web-Http-Logging, Web-Http-Redirect, Web-Http-Tracing, Web-ISAPI-Ext, Web-ISAPI-Filter, Web-Lgcy-Mgmt-Console, Web-Metabase, Web-Mgmt-Console, Web-Mgmt-Service, Web-Net-Ext45, Web-Request-Monitor, Web-Server, Web-Stat-Compression, Web-Static-Content, Web-Windows-Auth, Web-WMI, Windows-Identity-Foundation, RSAT-ADD

Install the following software in order:

.NET Framework 4.8
Visual C++ 2012 and 2013
UCMA Runtime API 4.0

Prepare Active Directory and domains for Exchange Server 2016

Permissions:

Schema Admin
Enterprise Admin

Step 1: Extend the Active Directory schema

Connecting Powershell to Exchange Online and getting TenantOrganizationConfig.xml file

Run the following command to prepare active directory;

Setup.exe /PrepareAD /TenantOrganizationConfig C:\OrganizationConfig.XML /IAcceptExchangeServerLicenseTerms

Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareDomain

Verifying the AD Schema is updated successfully by viewing the rangeUpper attribute.

Refresh Directory Schema – AD Connect

Now we have to refresh Directory Schema by running Azure AD Connect

Finally we are good to go for installation of Exchange Server 2016

Installation & Configuration of Exchange Server 2016

After Exchange Server 2016 is installed now perform the post installation tasks in the following order;

Configuration of Internal/External Virtual Directories (ECP, OWA, OAB, Autodiscover, MAPI, EWS)
Configuration of SSL Certificate
Configuration of Internal/External DNS on Exchange Server 2016
Configuration of Outlook Anywhere
Configuration of IMAP4 and POP3
Configuration of Mailbox Databases
Configuration of Relay Connectors for Applications/Devices (if needed)
Switch DNS and also update NAT entries in Firewall/Router

Updating Office 365 Hybrid Topology

Re-Configuring HCW (Hybrid Configuration Wizard)

The Office 365 Hybrid Configuration Wizard is re-installed and configured on Exchange Server 2016. This will update existing Exchange 2010 Organization topology after introducing Exchange Server 2016.