How to reboot iPhone 7
Mail is frozen. Don’t know how to reboot. What are sleep & home buttons. Help
iPhone 7, iOS 14
Hello. If only a single app on your iPhone is frozen, it is likely not necessary to reboot. You can close the app on your iPhone by following these steps to see if this resolves your issue.
If the issue persists following closing and reopening the Mail app, you can restart your iPhone by following the steps here.