User's Manual

Chapter 2: Module - eSMTP_server
The eSMTP_server module is a member of the input program family. Therefore, the eSMTP_server is
capable of generating alarms to eKERNEL.
The name eSMTP_server can be rather confusing. In fact, there is no SMTP server functionality
implemented in the module. This means the application is not acting as an SMTP server, and is not
listening on port 25 for inbound SMTP requests.
The module eSMTP_server must always be seen in conjunction with the SMTP Server component that
is shipped with Windows, as part of the Internet Information Server software.
The actual role of SMTP server (handling inbound sockets connections on port 25) is played by the
Microsoft component. This component stores inbound mails in a directory structure, as specified during
configuration of the Microsoft component.
A typical configuration sends inbound mails to the directory c:\inetpub\mailroot\drop.
These e-mail files are in fact readable text-files that can be opened with a text editor, such as Notepad.
Figure 18: Example of inbound e-mail on page 28 shown an example of an inbound e-mail:
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