I have an iPhone 4 using iOS 6 which has had severe battery drain for the past week or so. To fix this ive attempted to remove all mail accounts on my phone with the intention of adding these back via itunes - which I believe I did in Mountain Lion. Now there is no option for mail in itunes to add mail accounts - where has this gone? Do i need to manually add each email account? Problem is i have 10+ accounts with auto-generated very hard passwords! What about if i deleted everything on my iphone and 'restored from backup' - would that put back the mail accounts?