Add, edit, or disable your email signature for Yahoo Mail on mobile devices

Give a personal touch to your emails and distinguish yourself from other users. Add your address, phone number, website, your favorite mantra or quote of the day and make your emails memorable. 
To edit your signature you must use a supported browser on your phone or go to Yahoo Mail on your computer and edit your signature there and it will shows up on your phone screen too.

1. Tap the Menu icon | select Settings.
2. Tap Signature.
3. Tap the Toggle button to enable or disable the signature  .
4. Tap below the username | enter or edit your signature in the field.