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Tony Redmond MVP
Tony Redmond has been working with Exchange Server since Digital and Microsoft concluded the Alliance for Enterprise Computing in August 1995 and he found out that the OpenVMS-based email server that he was working on had just been superseded. He's written ten books on Exchange to date, including his latest "Inside Out" book on Exchange 2013 (Mailbox and High Availability) that appeared in October 2013. In addition, he has written literally hundreds of articles about different aspects of Exchange and has spoken at conferences such as TechEd, MEC, Exchange Connections, and HP's Technology Forum.
Exchange Online running on Microsoft’s Office 365 cloud platform operates more than 100,000 servers to support some 60 million mailboxes. At least, that’s the best-guess estimate based on information provided by Microsoft at the Exchange Conference 2014, data in their most recent financial reports, and consultant analysis.
Anyone who runs an on-premises Exchange environment today would be forgiven for wondering how long their job will last, at least in its current shape. The sales pressure from Microsoft and other vendors to influence CIOs to consider moving workloads to cloud platforms increases all the time and the inevitable fear is that jobs disappear once work is transitioned.