If you have any tasks assigned to you which are either 1) overdue or 2) due within the next 7 days Donorfy will send you an email with a summary of the tasks on Monday morning. If you prefer, you can disable these emails by going to 'Manage your Notifications', accessed from the profile button - top right of screen.

Once the task is done marked it as completed by finding it your list of tasks and setting completed to Yes - see below - this will stop it appearing in the next task reminder email. For more information about tasks see this article