I have created some Confluence tasks but my users are not getting emails from Task Reminder
This can happen if your page has restrictions on it. Task Reminder will only send out emails to the user if they are able to see the page that the task is on. Also, make sure to check if the task has a due date. Task Reminder might be configured to only send reminders about tasks that have due dates.
For more information on what kind of Confluence tasks are included in Task Reminder emails please refer to this page.