1. Select the Settings button at the top of the Modules bar.
2. Select Accounts under Settings.
3. Select the account you want to edit or create a signature for.
4. Edit your display name, email, organization and signature once selected.
5. Customize your signature.
|Select the HTML signature checkbox to edit the formatting of your signature with rich text tools as well as add an image.|
6. Click Save.
Now the custom signature will appear on every e-mail.