I don't know what I did to my phone, but know every time I get a yahoo mail (using the app) I get a voice notification tell me that I have an email and it's driving me crazy, how do I stop it. Thanks
Haha the same thing happened to me too. It turned out that I accidentally activated "Driving mode" when I was playing with the voice activation. Double tap the home button and see if that's the case for you too.