The Messaging Application Program Interface (MAPI) is an extensive set of functions that enables different e-mail applications to work together to distribute (email)messages.
The full function library is known as MAPI 1.0 or Extended MAPI. Extended MAPI allows complete control over the messaging system on the client computer, creation and management of messages, management of the client mailbox, service providers, and so forth.
Simple MAPI is a subset of 12 functions, which enable developers to add basic messaging functionality to their Windows-based applications. Simple MAPI includes functions to support sending and receiving messages:
* Log onto the messaging system.
* Compose new messages, add and resolve recipients, send messages.
* Retrieve and read messages from the inbox.
The Windows Address Book (WAB) is an application and service that enables users to keep track of people. The WAB has a local database and user interface for finding and editing information about people, and it can query network directory servers using Lightweight Directory Access Protocol (LDAP). Other applications can use the WAB. For example, Microsoft Outlook Express? uses the WAB as its e-mail address book.
Easy MAPI is a Delphi toolkit (100% native Delphi) that will give you access to the Simple and Extended MAPI interfaces and the Windows Addressbook API, the "Delphi way".