In Microsoft Exchange Server 2007, you can specify the language preferences for a mailbox, in order of preference, with the Languages parameter by using the Exchange Management Shell and the Set-Mailbox cmdlet. Several Exchange components display information to the user using the preferred language, if that language is supported. These components include quota messages, non-delivery reports (NDRs), the Microsoft Outlook Web Access user interface, and Unified Messaging (UM) voice prompts.

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