This documentation is preliminary and is subject to change.
Welcome to the Microsoft Outlook 2010 Messaging API (MAPI) Reference, which provides the messaging architecture for Microsoft Outlook 2010. MAPI for Outlook 2010 provides a set of interfaces, functions, and other data types to facilitate the development of Outlook 2010 messaging applications. Applications and transports use MAPI to manipulate e-mail data, to create e-mail messages and the folders to store them in, and to support notifications of changes to existing MAPI-related data.
Publish date of this reference: August 2009 (version 2010 Technical Preview)
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