1 Introduction

This chapter provides an overview on how to use Oracle Application Server Integration InterConnect (OracleAS Integration InterConnect) Adapter for Simple Mail Transfer Protocol (SMTP adapter). It contains the following topics:

• SMTP Adapter Overview

• SMTP Adapter System Requirements

• Known SMTP Adapter Limitations

SMTP Adapter Overview

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

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 type of 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 Integration InterConnect.

Figure 1-1 Incoming Messages

Description of "Figure 1-1 Incoming Messages"

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

Figure 1-2 Outgoing Messages

Description of "Figure 1-2 Outgoing Messages"

SMTP Adapter System Requirements

The following sections describe the system requirements for the SMTP adapter:

• Hardware Requirements

• Software Requirements

Hardware Requirements

Table 1-1 lists the hardware requirements for installing the SMTP adapter.

Table 1-1 Hardware Requirements

Hardware	Windows 2000	UNIX
Disk space	400 MB	400 MB
Memory	512 MB	512 MB

Software Requirements

The following sections describe the software requirements for the SMTP adapter:

• Operating System Requirements

• JRE Requirements

Operating System Requirements

Table 1-2 lists the operating system requirements for installing the SMTP adapter.

Table 1-2 Operating System Requirements

Operating System	Version
HP Tru64	HP Tru64 UNIX (Alpha) 5.1b
HP-UX	HP-UX (PA-RISC) 11.11, 11.23
IBM AIX	AIX (POWER) version 5.2
Linux (x86)	Red Hat Enterprise Linux 2.1, 3.0 SuSE SLES8, SLES9
Sun SPARC Solaris	Sun SPARC Solaris 2.8 and 2.9
Microsoft Windows	Windows XP Professional, Windows 2000 (SP3 or higher)

JRE Requirements

OracleAS Integration InterConnect uses Java Runtime Environment (JRE) 1.4, which is installed with its components.

Known SMTP Adapter Limitations

The SMTP adapter has the following limitations:

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

• Only a single endpoint is supported for incoming messages.

• The sending and receiving applications must support SMTP.

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

• In case of multiple instances, 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 message must be one part Multipurpose Internet Mail Extension (MIME), with the data encoded in base64. If the incoming email contains more than one attachment, then only the first attachment is extracted as payload.