Dell M6220 User Configuration Manual page 240

Emergency messages (severity level 0) will be sent immediately as individual
emails, and messages with a severity of alert, critical, and error (levels 1-3) will
be sent in a single email every 120 minutes. Warning, notice, info, and debug
messages are not sent in an email.
The email the administrator will in the inbox has a format similar to the
following:
Figure 10-24. Email Alert Message Format
For emergency-level messages, the subject is LOG MESSAGE -
EMERGENCY. For messages with a severity level of alert, critical, and error,
the subject is LOG MESSAGE.
To configure the switch:
1 Specify the mail server to use for sending messages.
console#configure
console(config)#mail-server ip-address 192.168.2.34
2 Configure the username and password for the switch must use to
authenticate with the mail server.
console(Mail-Server)#username switch6843
console(Mail-Server)#password password6843
console(Mail-Server)#exit
240
Monitoring and Logging System Information