"Email confirmation" refers to the process of receiving a valid acknowledgement or proof that an email you sent has been successfully delivered and received by the intended recipient. Full definition
If you receive email confirmation of flight details, it'll add them to your calendar. (howtogeek.com)
Once you have received email confirmation of your attendance either return to the events section of the site or click on the button in the email that says «Pay for a friend». (uk.match.com)
Just received email confirmation from the court that the certificate was received and my case was dismissed. (onlinetraffic.com)