Master switch
 The master switch overrides all other settings for Notify. You can use it to suspend notifications without having to disturb any of your settings under “Detailed settings” and “Subscriptions”.
Detailed settings
These settings will only be effective if the master switch is set to “Enabled”.
Include new posts in the notification mail.
Include new comments in the notification mail.
Select the amount of each item to include in the notification e-mail.