To add your email signature for Outlook on Mac:
- Open Outlook
- Click on “Preferences” in the application Menu
- Click on the “Signatures” button
- Click the + sign
- Copy and paste your about.me URL into the text entry box
- If you’d like to rename your signature, double-click its name in the list and type a new name
- If you’d like to make the signature your default, click the “Default Signatures…” button and choose your signature name from the list for your email account
- Click “OK” and close the Preferences window