My iPhone 6S Plus is up-to-date with iOS. I am trying to create new folders in the mail for both Gmail and Roadrunner. I am also trying to delete unused folders. I do the steps and then save but nothing has changed. I exit the mail app to see if it will open with the changes and it is still the same. I opened my gmail in Safari and logged in and made those changes there and then opened it in the mail app, but it was still with the mailbox I wanted deleted and it did not show the new one. I did not think that would work, but figured I would give it a try. I have followed the steps in the mail app. At first I thought it was a roadrunner thing because that is nothing but trouble on any device. So I thought I would create a folder or label in the gmail account and name it with what it was for with RR after it so I know it is actually from the roadrunner account, ie FAMILYRR. Gmail would not allow the new mailbox, no matter what I named it. So, I can't edit the folders in gmail mailboxes or roadrunner mailboxes on my iPhone 6S Pus with the iOS up-to-date.