can't delete yahoo from mail

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http://forums.androidcentral.com – I've been having constant problems with yahoo mail and the stock email app that comes with the note. It doesn't seem to update half the time and then keeps giving wrong password errors then seems to work. I think I'm through with yahoo and don't want to use their ad based app. So every time I try to delete the account from my mail, it says it either can't communicate with the server and fails to delete, or I get a message saying that I have to reset my phone to get rid of it since it seems to be tied into my google backup. What the hell is going on? (HowTos)