With the latest update of Airmail, Touch ID is now supported to help secure your emails.
Enable Touch ID
1. Tap the menu icon ≡ in the top left corner on the app, which will reveal the menu.
2. Tap on Settings
3. Scroll down to the Advanced section
4. Tap on the Touch ID button to activate. If the button is green, Touch ID is enabled. If you are enabling it for the first time, you will be asked to enter a passcode first.
Using Touch ID
Touch ID protection will be enabled after a few minutes of inactivity.
You will be prompted to authenticate using your finger when reopening the app.
Hold your finger on the home button to unlock.