ContributionsMost RecentMost LikesSolutionscannot send email on iPhone 7 or iPad with Cox I have deleted and re added account, checked settings and passwords, still not working. Why does this keep happening with Cox? Please help. Re: unable to send cox email when the phone 7 plus not wifi I have been unable to send email with Cox on my iPhone 7 and iPad for days. I have deleted and reset up account, checked settings, still cannot send emails. What is the problem? This seems to happen every month or two, but usually resolves after I put password in. Please help.