2. In the Settings pane, click Identities, and then click the account for which you to create a signature.
4. If you primarily send formatted (HTML) messages, you can enable the HTML signature option which allows you to add formatting of your signature; when HTML signature is selected, the Signature text box displays a formatting toolbar.
5. Click Save.
7. In the Signature Options section, from the Automatically add signature drop-down list, choose the option to specify the way you want to display your signature:
- never—Do not display the signature.
- always—Display the signature on all messages, including new messages, replies, and forwards.
- new message only—Display the signature on new messages, but no on replies or forwards.
- replies and forwards only— Display the signature on replies and forwards but not on new messages.
8. Click Save.