Our system setup
I'm part of the team that maintains and manages our enterprise Jira suite. We have a relatively young setup with ~2k users and ~30k issues currently.
Issue
One particular Jira user in my system received way too many notifications, even on issues that the user is neither a participant nor a watcher.
This user is watching and has participated on 12 issues only but receives notifications on random issues from throughout the system without ever having even visited them. Relatively speaking, he is one our 'lighter' users in the system.
So far, this is the only user who's facing this issue, none of the other users are facing this.
Notification scheme
Our notification scheme is setup to mail 'All Watchers' and 'Current Assignee' on certain events. The scheme does not notify any users on 'Generic events'.
Bug Watcher plugin
We use the bug watcher plugin as it gives users finer control over notifications that they receive. I've check his profile with regards to each project and no where is he subscribed to all updates.
Type of notifications received
This user is receiving notification for pretty much every project (we have plenty), even the ones the user has never visited. Notification are for all types of issues in the system.
In addition, notification are received for all types of activities -- comment, assignment, workflow transitiions -- none of these seem to triggered by the notification scheme.
How do I diagnose why the users receives this volume of notifications and stop them?
Is there something we haven't check or verified yet?
Edit (11/3):
- Clarified the title to state that its a user who's receiving too many email address
- Added section 'Type of notifications received' to clarify on the nature of these notifications