Protect your inbox with the security of TouchID, and require your finger to unlock the Email app. Follow these instructions to enable the feature:
- Tap the menu icon in the upper-left corner
- Tap Settings
- Tap Enable TouchID and ensure Enable TouchID is enabled
- Set your preferred amount of time before the app prompts you for your fingerprint to unlock again. You can choose between immediately, after 1 minute, after 5 minutes, after 15 minutes, after 30 minutes, and after an hour.
- Now you'll be required to verify your identity in order to open the app after your preferred amount of time has passed.