1
Introduction

This chapter describes the Simple Mail Transfer Protocol (SMTP) adapter and the hardware and software requirements.

This chapter contains these topics:

• SMTP Adapter Overview

• SMTP Adapter System Requirements

• SMTP Adapter Known Limitations

SMTP Adapter Overview

The SMTP adapter enables an Oracle SMTP application to be integrated with other applications using OracleAS InterConnect. This adapter is useful in all enterprise application integration (EAI) environments where e-mail uses the Internet Message Access Protocol 4 (IMAP4) and SMTP transport protocols. EAI is the integration of applications and business processes within the same company (known as an enterprise).

The SMTP adapter can monitor incoming messages in the form of e-mail placed on an IMAP server. The SMTP adapter is also capable of sending messages to SMTP servers. The payload type (the data being delivered to a destination) for this adapter is one of the following:

• Extensible Markup Language (XML) data

• Data definition description language (D3L) data

Figure 1-1 depicts the data flow of incoming messages (from an IMAP server to OracleAS InterConnect).

Figure 1-1 Incoming Messages

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Figure 1-2 depicts the data flow of outgoing messages (from OracleAS InterConnect to an SMTP server).

Figure 1-2 Outgoing Messages

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SMTP Adapter System Requirements

The following sections describe SMTP adapter system requirements:

• Hardware Requirements

• Software Requirements

Hardware Requirements

Table 1-1 lists the hardware requirements for the computer on which to install the SMTP adapter.

Table 1-1 Hardware Requirements

Hardware	Windows 2000	UNIX
Memory	128 MB	128 MB
Disk space	500 MB	500 MB

Software Requirements

The following sections describe SMTP adapter software requirements:

• Operating System Requirements

• JRE Requirements

Operating System Requirements

Table 1-2 lists the operating system requirements for the computer on which to install the SMTP adapter.

Table 1-2 Operating System Requirements

Operating System	Version
Windows NT	Version 4.0 with Service Pack 6 or above
Windows 2000	With Service Pack 1 or above
IBM AIX 5L	5.1 and 5.2 (64 bit)
HP Tru64	5.1a and 5.1b (64 bit)
HP-UX	11.0 and 11.11 (64 bit)
Red Hat Linux	Advanced Server 2.1
Sun SPARC Solaris	8 and 9 (32 bit)

JRE Requirements

OracleAS InterConnect uses Java Runtime Environment (JRE) 1.4.1, which is installed with its components.

SMTP Adapter Known Limitations

The SMTP adapter has the following limitations:

• The IMAP server with Secure Socket Layer (SSL) is not supported.

• Only multiple endpoints (destinations) for outgoing messages (from OracleAS InterConnect to SMTP servers) are supported. For incoming messages (IMAP server to OracleAS InterConnect), only a single endpoint is supported.

• The sending endpoint and receiving endpoints are restricted to SMTP endpoints.

• Only IMAP4 server is supported in this release. Post Office Protocol 3 (POP3) is not supported.

• In multiple instance cases, ensure that each application instance has a separate receiving endpoint. Otherwise, different instances of adapters may attempt to process the same message concurrently.

• For messages of type D3L, the SMTP adapter expects the message to be sent or received as a one part Multipurpose Internet Mail Extension (MIME) message with the data encoded in base64. If the incoming email contains more than one attachment, only the first attachment will be extracted as the payload.