By default, configured users receive detailed notifications about all enabled system events. Informational events are logged when there is a change in the system. Failure events are logged when there is a failure in the system.
You can use the CLI to change which events are enabled. For example, you could disable informational events, such as system log file rotations, from triggering notifications.
For each recipient, you can specify whether failure notifications, informational notifications, or both are sent. For example, a user might want to know that a disk failed, but not that an excessive temperature condition returned to normal.
You can also specify whether a user receives summarized or detailed notifications.