How to add delete to email swipe options on iPhone

If you use the native Mail app or Gmail on Apple's iPhone and you want to add delete as one of the swipe options or change the swipe gesture, you've come to the right place.

Source : https://www.pocket-lint.com/phones/news/apple/153049-how-to-add-delete-change-swipe-options-in-mail-and-gmail-on-iphone/