If you are one of them, here’s how you can modify the Outlook signature in the desktop app. Search for Outlook on the Windows ...

To add a signature in the Outlook app for Android or iOS, download the Outlook app on your phone and sign in. Tap on your profile icon in the top left next to the word Inbox. In the bottom left ...

It's the rectangular icon second from the left ... the little smiley face button under the signature field. When you're done, tap Next. 10. The app will tell you that your card number is ready.