I previously had the Yahoo mail app on my iPhone and my iPad in addition to the standard iOS Yahoo mail account. After iOS 7 came out, I decided to delete the Yahoo app from both devices and go strictly with the stock iOS Yahoo mail. However, while push to my Yahoo mail works on my iPad, it doesn't work on my iPhone. I deleted the account and set it up again, but that didn't seem to work. Does anyone have suggestions as to how to fix it?