Why does e mail in specific folders on my iPad 4, keep disappearing but remain on my laptop.My settings are all correct and mail cannot be deleted without my permission..

Why does e mail saved into specfic folders on my iPad 4 keep disappearing for no reason, especially when I have saved them and have not requested

a delete of any of them.

My settings are all correct, the only saving grace is that the mails remain in identical folders on my laptop.

Have been asked by other users what is the problem, as they too suffer the same experience.

Would be nice to have an answer to this.

Mike