Q: My email suddenly stopped working.  Screen goes blank for about 15 seconds, then goes back to the home screen.

Hey SKerchance,

Thanks for the question. If I understand correctly, when you use mail, it crashes and goes to the home screen. I would recommend that you read this article, it may be able to help the issue.

Get help with Mail on iPhone, iPad, and iPod touch - Apple Support

Thanks for using Apple Support Communities.
Have a good one