Just a reminder, Exchange Server 2010 and 2013 versions have some important dates coming up:
- Exchange Server 2010 support will end on January 14, 2020
- Exchange Server 2013 has now entered extended support on April 10, 2018
The Exchange team blog site has additional information listed for Exchange Server 2010 and for Exchange Server 2013 support stance. Therefore, plan your migration of Exchange content to Exchange Server 2016 or to O365 using Exchange Online.