The JavaMail component of J2EE supports the creation and transfer of mail messages from a client to a mail server. Implementations of JavaMail provide support for the common Internet open mail exchange protocols: POP3, IMAP, and SMTP. JavaMail also provides interfaces for the creation of MIME message content. MIME is an open and widely used mail message format on the Internet, supporting multiple content types within the same mail message such as text and images.
In the context of the WAS and Domino products, JavaMail is a natural interface to the mail handling functions of Domino. The JavaMail classes and interfaces can be invoked from a Web application running on a WAS node to send and receive mail via a Domino server. We'll also explore the use of JavaMail in a combined WAS and Domino application server environment in later chapters.
JAXP 1.1
The Java API for XML Processing (JAXP) provides a standard interface to XML processing functions within the J2EE component framework. A more recent 1.2 version of the JAXP specification has been defined; however, JAXP 1.1, along with DOM Version 2 and SAX Version 2 XML parsers, are required by the J2EE 1.3 version. The later versions of JAXP, DOM, and SAX are not supported by J2EE 1.3. Applications written to other XML processing APIs (such as the XML API for Java) must be changed to support only the APIs defined in JAXP 1.1.
