Updating your default notification settings can be done from your Salesforce profile.
1. Log into Litify.
2. Select your Profile > Settings.
3. Navigate to Calendar & Reminders > Activity Reminders.
4. Enable/Disable reminders. For example, you can disable emails sent upon getting an assigned task from the Email Settings.
If you are unable to update your personal settings, have your administrator enable user control of email notification for tasks.