Jason been working as a Microsoft infrastructure expert for 21 years. He has worked with and focused on Exchange since the betas of 4.0 in 1995; with Office 365 and its predecessors since 2009. Jason has been a Microsoft MVP since 2006. He has also worked as an AD & Exchange product manager, consultant, and subject matter expert during this period. In his career, he has helped design, migrate and manage millions of users and systems, including some of the largest Microsoft environments in the world. Jason has built-out consulting practices, spoken at industry events, and written for websites and magazines. He current works as a Microsoft subject matter expert for Commvault.