Just tested on iOS 7 default Mail app, definitely leaks. Is there any way to stop this?
I'm guessing Gmail app would. edit: tested, doesn't leak!
I'm guessing Gmail app would. edit: tested, doesn't leak!
Then I tested using an account on a personal email server that I set up recently using iRedmail on a VPS -- it leaked! It showed both my external ISP IP addres and my internal IP address on wifi!