do your mails actually say “Flapping” - because then flap detection works, but you also can configure wether you want to be notified about Flapping or not.
sorry for the confusion. I had an older version of checkmk running at home with flapping detection on. when a service was flapping, I received one mail for start flapping and one end flapping and no mails of the service going warn and ok and so on. thats what I want to achieve.
By activating the option on the notification entry, notification emails have changed. they look different now. I have to watch this.
we are getting email notifications now for services we didn’t want to get notifications for. there is no entry in the rules for these serives, but we are receiving email notifications. the option in the notification rule is already disabled with no success.
I think here is a bigger knowledge gap at play, and not a specific error, that can easily be answered. Maybe consulting or training should be considered.