This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
Unfortunately, there is no way to turn the DCS-932L off remotely. Alternatively, you can go into the Web Interface and disable email. You can accomplish this workaround through mydlink, Settings Tab > Advanced Settings, (if you are away from home) or direct login to the web interface (before you leave your home).