Microsoft Hosted Exchange – Market Quadrant 2011 is a free whitepaper, authored by the Radicati Group and sponsored by Perimeter E-Security.
“Microsoft Hosted Exchange Providers offer cloud-based Microsoft Exchange services in a wide range of configurations from multi-tenant to single tenant configurations for businesses of all sizes. Well-known Microsoft Hosted Exchange providers include: AppRiver, Apptix, Ceryx, Intermedia, Microsoft, NaviSite, Rackspace, USA.NET, and others.
This whitepaper, from the Radicati Group, is an independent analysis of the market for Microsoft Hosted Exchange, revealing top players, mature players, specialists and trail blazers.”