ContributionsMost RecentMost LikesSolutionsRe: Cox online backup does not support Mac OS Lion -released Oct 2010?! Time Machine Re: Problem with cox email client I am having the same problem. I have set up literally thousands of email accounts on iOS devices as I work for Apple, yet I get the same error message when I attempt to add my own on both my iPhone and iPad. I am 100% positive that the name and passwords are correct.