Swipes enable you to take quick gesture-based actions, including marking email read, deleting, and adding stars, right within the Message List without having to open the email. Swiping is enabled by default so you can start using this useful feature right away. You can also customize the Swipe actions to fit your preferences, or disable the feature if you prefer. It's your choice:
1.Tap the Nav icon at the top left corner of the Nav Bar to display the Navigation Drawer.
2.Tap the Gear icon at the bottom of the Navigation Drawer to bring up Settings.
3. Tap Mail.
4. Tap Swipes.
5. To enable the Swipes, tap the Enable Swipes switch to enable it. Tap the following to customize them:
a. Left short
b. Left long
c. Right short
d. Right long