System | Notifications | Configure Alerts

Configure alerts services in this section, select configure backends or configuring the cluster.

Once the configuration options have been modified, just click on UPDATE to apply changes.

Prefix Subject. It allows configuring a prefix subject in all emails that are sent by the system for this kind of alert.
Avoid Flapping Time. Sometimes backends are enabled or disabled in a short period of time, this field allows to configure a period of time to avoid the backend status notifications, once this period of time concludes, the backend status changes will be informed once. If the backend status changes in this period of time, then notifications are not sent. (Only for backends alerts)