Users will receive daily notifications at around 8-9am local time through email and the in-app drawer if overdue/due today issues are assigned to them.

Current Options

1. This feature can be turned off by each individual user by going to Jira Personal Settings(jira/settings/personal/general), scrolling down to Jira labs and toggling off Overdue Alerts.
2. Alternatively, Jira Admins may disable all notifications of the site following Settings > System > Outgoing Mail (https://<SITE>.atlassian.net/secure/admin/OutgoingMailServers.jspa), this is mostly useful for sandbox instances only.

Suggestion

It would be better to have the option to disable ONLY the overdue alert notifications for the entire site.