A 64-bit only server, Exchange 2010 includes new storage and deployment options, enhanced in-box management capabilities, built-in e-mail archiving, new database clustering, additional hardware options, and a revamped Outlook Web Access client. Also, the server is touted as a hybrid -- equally at home as a hosted platform as it is in a corporate messaging infrastructure. The hosted version is not expected to ship until May or June 2010.
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