http://www.anetcomputers.com/microsoft-exchange-server-exchange-server-2016-preview-released/
Microsoft today released Exchange Server 2016 preview. This Exchange Server 2016 preview only, is now available for download. An official version number is 15.01.0225.017.
File name for download is Exchange2016-x64-Preview.exe. This is a 1.7 gigabyte executable file. You can store email at your location or via a cloud technology. Microsoft recommends using this in a lab only and is not for production use.
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