Check_MK: Notification

Notification for Hosts as well as Services is turned on by default. It can be turned off globally via Master Control in side bar. But if you only want few important notices sent via email, you can apply disable notification to ALL Hosts as well as Services in their Parameters, then Negate these few exceptions.

• add Email address in WATO Users.
• assign the user to specified Contact Groups in WATO Users.
• configure the default email notification item in WATO Notification. HTML is default.
• test the mail command on your Check_MK host, as mentioned in the REF below.

REF: https://mathias-kettner.de/checkmk_flexible_notifications.html