These are all the names that are published for Outlook Anywhere, AutoDiscover, and all Exchange Virtual Directories. DNS records and load balanced virtual IP addresses) used for client connectivity and ensure they are routing to the 2016 environment. Client Access (CAS) Role Check Server FQDNs EWS, mail transport, database-aware) and make sure to configure these applications to start using Exchange 2016 infrastructure. Make a list of applications that may be using Exchange 2010 (e.g. The following steps to consider are separated into server roles when preparing for a soft shut down and preparing for the removal of server roles. Once you’ve completed the migration from Exchange 2010 to, let’s say, Exchange 2016, you should prepare the 2010 environment prior to decommissioning the servers. If your organization has moved all mailboxes to Office 365 and is in a Hybrid environment, we are assuming you will maintain an Exchange footprint per Scenario 2 in How and when to decommission your on-premises Exchange servers in a hybrid deployment.
This post assumes that your organization is maintaining some Exchange presence on-premises, whether Exchange 2013 or 2016 (we do not mention Exchange 2019 in this post because it cannot coexist with Exchange 2010).
As many of you know from the previous post regarding Exchange On-Premises Best Practices for Migrations from 2010 to 2016 the end of support for Exchange 2010 is quickly approaching.