except if they actually verify the email doesn't bounce and you don't have a cell-data device, then you need the wifi in order to get your 10minutemail address…
A year ago, I was at Montreal Trudeau Airport waiting for my flight. I tried to connect to the Wifi, it asked for an email address and as usual I entered something in the like of dksqjd@skqdhqsd.com
Problem is you first get 10 minutes of wifi to go check your email. Once the email is confirmed, you get unlimited wifi.