Log message severity levels

Logs, reports and alerts : About FortiMail logging : Log message severity levels

Each log message contains a field that indicates the severity level of the log message, such as pri=warning.

Table 59: Log severity levels
Levels	Description
0 - Emergency	Indicates the system has become unusable.
1 - Alert	Indicates immediate action is required.
2 - Critical	Indicates functionality is affected.
3 - Error	Indicates an error condition exists and functionality could be affected.
4 - Warning	Indicates functionality could be affected.
5 - Notification	Provides information about normal events.
6 - Information	Provides general information about system operations.

For each location where the FortiMail unit can store log files, you can define the severity threshold of the log messages to be stored there.


	Avoid recording log messages using low severity thresholds such as Information or Notification to the local hard disk for an extended period of time. A low log severity threshold is one possible cause of frequent logging. Excessive logging frequency can cause undue wear on the hard disk and may cause premature failure.

The FortiMail unit stores all log messages equal to or exceeding the severity level you select. For example, if you select Error, the FortiMail unit stores log messages whose severity level is Error, Critical, Alert, or Emergency.