Introduction

Exchange Server 2013 became generally available in Jan. 2013, delivering a revised architecture, improved administration tools, and enhanced features. The updates boost the efficiency, availability, and resiliency of the messaging product and could ease Exchange administration while simplifying hybrid deployments that include Exchange Online (the Microsoft-hosted service based on Exchange) mailboxes. Many of the improvements in Exchange 2013 are driven by Microsoft’s experience and requirements hosting Exchange Online, which could also imply the software has been tested in rigorous environments. As with any Exchange upgrade, organizations should consider coexistence restrictions and licensing implications when migrating to Exchange 2013.

Architectural Improvements Target Large Deployments

Exchange 2013 includes several architectural updates, such as a reduced number of deployment roles and revised client access and mailbox services. These changes could cut the costs of and simplify deployments by allowing the use of less-expensive hardware and automating processes that maintain availability, reducing required administrator intervention.