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IBM Domino Designer Basic User Guide and Reference
Basic product usage information and programming language reference information.
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 Store provider
If you are a Notes® user receiving a message, you use the Message Store provider as the default MAPI handler of messages (instead of using the Message Transport provider). In addition, messages are sent using calls to the Message Store Message Interface rather than the MAPI spooler.

IBM 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.
- Domino® Designer templates
  The templates described in the following table are available with Domino® Designer and are specifically intended for use by application developers.
- Importing to and exporting from views
- 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 Address Book provider
    The Address Book provider provides access to the Domino® Directories.
  - The Message Store provider
    If you are a Notes® user receiving a message, you use the Message Store provider as the default MAPI handler of messages (instead of using the Message Transport provider). In addition, messages are sent using calls to the Message Store Message Interface rather than 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.
  - MAPI recipient types
    Domino® MAPI service providers handle delivery of messages to the following recipient types:
  - Platforms and requirements for MAPI
    The DLLs required for the Windows™ messaging subsystem are available only from Microsoft™. Before you install the Notes® Client, you must install Microsoft Outlook 98 or Microsoft Outlook 2000.
  - MAPI classes and methods
    Not all supported methods are supported for all objects.
- Features to avoid using in Web applications
  Developers creating applications specifically for the Web, or for the dual purpose of serving Notes® and Web clients, should review the following tables for features that are not supported on the Web.
- URL commands for Web applications
  You have a variety of options for programming a Web site. You can directly manipulate objects such as documents or views in an application using Domino® URL commands. Adding Domino URL commands as HTML in forms gives users shortcuts for navigating databases and performing other tasks quickly.
- Application Management
  Welcome to the Application Management section of Domino® Designer Help.
- Composite Applications - Design and Management
  Composite applications are a key element in a service-oriented architecture (SOA) and contextual collaboration strategy. The ability to create and edit composite applications lets you easily integrate different types of components and technologies.
- DB2® Access views
  Domino® Designer includes two types of design elements to assist you in managing data contained in DB2® enabled Notes® databases:
- Programming Overview and User Interface
  This section contains general guidelines and examples that show where to use Java, LotusScript, and the formula language.
- Formula Language
  This section documents the formula language.
- LotusScript® Language
  Welcome to the LotusScript® Language section of Domino® Designer Help.
- LotusScript/COM/OLE Classes
- Java/CORBA Classes
  This section documents the Java/CORBA classes.
- Lotus® Connectors
  Lotus® Connectors provide native access to a wide variety of DBMS products, ODBC, the platform File system, Enterprise Resource Planning systems, and Transaction Processing systems.
- Javadoc™ for Domino® Designer related APIs
  As part of providing additional Java™ reference documentation, Domino® Designer ships with a help plugin that contains Javadoc™ for additional Domino Designer related APIs.
- Accessibility and keyboard shortcuts
  Accessibility features assist users who have a disability, such as restricted mobility or limited vision, to use information technology content successfully.

The Message Store provider

If you are a Notes® user receiving a message, you use the Message Store provider as the default MAPI handler of messages (instead of using the Message Transport provider). In addition, messages are sent using calls to the Message Store Message Interface rather than the MAPI spooler.

MAPI creates an Outbox folder the first time the Domino® Message Store is accessed. The Outbox folder captures outgoing messages you send from any extended or simple MAPI client (for example, Microsoft™ Outlook or Office) when you are not connected to the LAN. Messages addressed to Notes® recipients are stored in the Outbox folder and placed in the local mail.box database in Domino®. Once a connection to the server is re-established, the messages are transferred. Messages addressed to non-Domino recipients are placed in the outgoing mail queue, the exchange.box database, and the MAPI spooler handles them.

The MAPI folder interface is mapped onto Domino® folders. You can create, move, copy, rename, and delete folders. You can also create or delete file attachments in messages you compose while using the client application. Attachment data is set or obtained using the IStream or IStorage interfaces. RTF and native HTML are supported.

Note that some message store capabilities may not be supported.