Message Object

The message object is a MAPI object that provides a view of a message. You create message objects with the following MAPI function calls: MAPIMessage::OpenEntry (for an existing message) and IMAPIFolder::CreateMessage (for a new message). You destroy message objects with a call to IUnknown::Release.

This section describes how the Microsoft Exchange Server information store provider implements message objects.

For more information on accessing message objects through MAPI, see Working with Messages.

For more information on the MAPI IMessage interface, see Message Interface.

For more information about information store properties declared by Microsoft Exchange Server and by MAPI, see Microsoft Exchange Server Message Properties and MAPI Message Properties with Special Behavior.

Note  This section describes the implementation of properties by the Microsoft Exchange Server information store provider, not the service provider that controls access to a user's set of personal folders, which are usually stored in a file with the extension .PST.