For Outlook on Mac (Desktop):
1. Open Outlook and go to Outlook > Settings from the menu bar.
2. Select Signatures under the Email section.
3. Click the + button to create a new signature.
4. Paste your copied signature into the newly opened editor box and name it in the Signature Name field. Save and close the window.
5. Set this signature as the default for any of your email accounts by selecting the signature name in the Choose default signature section.
6. Close the Signatures window and test your new signature.