Related Questions:
How do I remove task reminders?
How can I stop receiving the upcoming tasks in the e-mail?
How do I stop task notifications going to my email?
Answer:
Email notifications for Tasks are based on the 'Reminder' on the Task.
If you do not wish to receive an email notification for a Task, ensure that no reminder is added.
To remove a reminder on an existing Task:
Select the Edit icon on the Task
Click the trash icon next to the reminder
Select Save
Additional Information:
Task reminders cannot be removed in bulk. If multiple tasks need to be removed, it will need to be completed individually