Technical data

Configuring and Managing SMTP
17.4 Managing SMTP
to overwrite the old data already there. This functionality provides a snapshot of
the last lines of diagnostic text.
Logical names are available to modify the way SMTP logs information and the
type of information it reports. These are described in Section 17.5.
17.4.5 Starting and Stopping SMTP
SMTP consists of two components: the sender (the queuing mechanism) and the
receiver. You must start the sender before enabling the receiver. The receiver is
activated by the auxiliary server.
The SMTP can be shut down and started independently. This is useful when you
change parameters or logical names that require the service to be restarted.
The following files are provided:
• SYS$STARTUP:TCPIP$SMTP_STARTUP.COM allows you to start up the
SMTP independently.
• SYS$STARTUP:TCPIP$SMTP_SHUTDOWN.COM allows you to shut down
the SMTP independently.
To preserve site-specific parameter settings and commands, create the following
files. These files are not overwritten when you reinstall TCP/IP Services:
• SYS$STARTUP:TCPIP$SMTP_SYSTARTUP.COM can be used as a repository
for site-specific definitions and parameters to be invoked when the SMTP is
started.
• SYS$STARTUP:TCPIP$SMTP_SYSHUTDOWN.COM can be used as a
repository for site-specific definitions and parameters to be invoked when the
SMTP is shut down.
The SMTP services can be started automatically using the TCPIP$CONFIG
configuration procedure, or manually using the following command:
$ @SYS$STARTUP:TCPIP$SMTP_STARTUP.COM
To stop SMTP, enter:
$ @SYS$STARTUP:TCPIP$SMTP_SHUTDOWN.COM
17.5 Modifying the SMTP Configuration
You can modify the SMTP configuration by defining logical names that are
translated at queue startup time. Characteristics you can control include:
• Event-and error-logging diagnostics
• How mail headers are displayed
• How mail is routed
• How SMTP interacts with OpenVMS Mail
Some SMTP logical names are used to either enable or disable a configuration
option and do not require a value. If you define the logical name, the option is
considered to be enabled. If not defined, the option is disabled. To disable an
option, remove the logical name. By convention you should define these logicals
to a value of 1.
17–10 Configuring and Managing SMTP