Troubleshooting with Preview Notification for emails not delivered to usersSummaryEmails not delivered could be caused by notification recipients being inactive, due to the User record having an invalid or missing email ID to possibly generate a notification.ReleaseAll releasesInstructions1. Navigate to the System Notification > Email > Notifications. 2. Click Preview Notification on the form header. 3. In the Notification Preview window, verify if there are any invalid recipients, with the name highlighted in red. Hovering over the invalid recipient will provide the reason why the recipient did not receive the notification: How to troubleshoot Event triggered Notifications using "Existing Event" 1. Select Existing Event from the drop-down in the top right of the window. 2. Click on the magnifying glass under Event Record. 3. Find the existing sysevent record from the popup window, using the filter if required. Related LinksPreview email notifications