Or a better way is if you see in the top right hand corner of this page you'll have you're member name and then underneath it there's Inbox, Friends & Settings.
Click settings, click emails and do what you want from there.
I tried it on iPhone first, there's two iPhone options, either the one for phones or the general web page you'd see on a computer.
iPhone's are able to handle the general web page, I've changed mine to that. regarding the emails though, your best going into your settings and stopping them there.
Sport Witness cannot be held responsible for any injuries caused during the use of Sport Witness whether directly or indirectly. Sport Witness encourages all members to use Sport Witness only when it is safe to do so and discourages the use of Sport Witness whilst driving.