You will get email receipt and email notification if you check both options. email notification will have all fields summary including empty ones if check the option include a summary of the response data in the email.
email notification title is "form name": Response Received.
email receipt title by default is Form Submission Receipt: Adobe FormsCentral
Please share your form to me if you do see empty field in receipt without checked include empty fields. Here is my email address: email@example.com