I have seen this done through subscriptions to a filter. If your users are subscribed to a filter that has a query for unassigned due date they can un-subscribe from the filter. Another thing to check is to see if you have an add-on that is sending those reminders.
Hopefully that helps.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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