Users receive repeated or stale email notifications for old alerts that may have already been updated or should no longer be triggering new emails.
VMware Aria Operations 8.18.x
The "Notification heartbeat" setting is enabled within the Notification rule. When active, this feature sends repeat notifications for any alerts that remain in an active state.
To stop the repeated delivery of old alerts, disable the notification heartbeat setting:
For more information on configuring these rules, see Creating Notification Rules for Alerts.
If notifications continue after disabling the heartbeat, verify that the SMTP server is not retrying deliveries due to invalid recipient addresses. See Aria Operations alert emails repeating the delivery for details on SMTP-level issues.