While we strongly believe that you can achieve the best value and user experience by migrating to Office 365, we also understand that some organizations need to keep their email on-premises. This could be because of regulatory requirements, to guarantee data isn’t stored in a DataCenter located in another country, and so on. If you choose to keep your email on-premises, you can migrate your Exchange 2010 environment to Exchange 2016. Exchange 2016 includes the features and advancements included with previous releases of Exchange, and it most closely matches the experience available with Office 365 (although some features are available only in Office 365).