After upgrading to Version: 8.18.3 (24521408) after an alert has cleared you continue to receive email notifications for it until you "delete the canceled alert"
Under Notifications the Notify ON setting is NEW only
Environment
Aria Operations 8.18
Resolution
Workaround
Create a new Notification Rule using the same parameters as the malfunctioning Notification Rule.
Note: Do not clone the existing Notification Rule to prevent copying any corruption to the new Notification Rule.
Disable or Delete the malfunctioning Notification Rule.