If you want to receive task notifications and reminders/invites into your Outlook calendar, please ensure you have this setting turned on within your personal settings page:
When a Task notification is sent out from Ezekia, it will contain an ICS file (a generic calendar invite), which will put a placeholder meeting for the correct time and date into your Outlook calendar. It will only be tentative, until you accept this invite.
Once you complete and check off the Task, a second email notification will prompt you to remove the meeting from your calendar to avoid clutter.