User's Manual

Chapter 1: Module - eSMTP
The eSMTP module is an output program that receives message requests from the eKERNEL module.
The eSMTP connects to an SMTP server, and delivers mail requests to the mail server according to the
RFC821 specifications. This involves a sockets connection between eSMTP and the SMTP server of
choice. For such a connection, eSMTP is TCP client and the SMTP server is TCP server, listening on port
25.
Initialization
The eSMTP module is started by means of a shortcut.
Figure 1: Example of required
keywords on page 15 shows an example of the required keywords:
Figure 1: Example of required keywords
The following keywords are used:
• Site
The Site keyword denotes the site that is assigned to the eSMTP module.
• eKERNEL address
The eKERNEL address keyword denotes the IP address that is assigned to the eKERNEL
module. The eSMTP contacts this IP address to connect to the eKERNEL.
• eKERNEL por
The eKERNEL port keyword denotes the port number that is assigned in the configuration
for the eSMTP client instance.
On startup, the eSMTP application attempts to connect to the eKERNEL. This is performed
based upon the address and port information obtained from the shortcut.
At connection, the eSMTP requests the eKERNEL to provide additional configuration settings.
This is known as a configuration request. The eKERNEL in turn authenticates the client and
responds with a configuration reply.
Figure 2: eSMTP configuration request on page 16 shows the configuration request.
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