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HCL Domino Designer Basic User Guide and Reference
Basic product usage information and programming language reference information.
Application Design
Welcome to the Application Design section of Domino® Designer Help.
Developing applications using MAPI
Domino® Designer Release 6 and later supports the messaging application program interface (MAPI), which allows mail integration between Domino and a MAPI-compliant messaging application, such as Microsoft™ Outlook, Microsoft Office applications, or user-written C++ programs.
The Message Transport provider
The Domino® Mailer and Router transfers messages between Notes® users. When the MAPI spooler receives messages composed in a non-Notes message store, the Domino MAPI Message Transport provider registers address and message types and sends messages to Notes recipients. If one or more recipients are not of ADDRTYPE Notes, the Mail Router passes the messages to the MAPI spooler.

The Message Transport provider

The Domino® Mailer and Router transfers messages between Notes® users. When the MAPI spooler receives messages composed in a non-Notes message store, the Domino® MAPI Message Transport provider registers address and message types and sends messages to Notes® recipients. If one or more recipients are not of ADDRTYPE Notes®, the Mail Router passes the messages to the MAPI spooler.