Configuring export of Sendmail events

Events are sent from the Sendmail mail agent server to the KUMA collector using the rsyslog service.

To configure transmission of Sendmail events to the collector:

1. Connect to the server where Sendmail is installed using an account with administrative privileges.
2. In the /etc/rsyslog.d/ directory, create the Sendmail-to-siem.conf file and add the following line to it:

   If $programname contains 'sendmail' then @<<IP address of the collector>:<port of the collector>>

   Example: If $programname contains 'sendmail' then @192.168.1.5:1514

   If you want to send events via TCP, the contents of the file must be as follows:

   If $programname contains 'sendmail' then @@<<IP address of the collector>:<port of the collector>>

3. Create a backup copy of the /etc/rsyslog.conf file.
4. Add the following lines to the /etc/rsyslog.conf configuration file:

   $IncludeConfig /etc/Sendmail-to-siem.conf

   $RepeatedMsgReduction off

5. Save your changes.
6. Restart the rsyslog service by executing the following command:

   sudo systemctl restart rsyslog.service