How do I delete my signature from my Yahoo account?

In Yahoo
  1. under the Options drop down (link at top left or top right), choose Settings.
  2. Click on the Accounts link in the left hand menu
  3. In the list of email addresses, click on the email address that you want to add the signature to.
  4. Scroll down to the Signature box, then select the ticker and click on your delete button. Press Save and your signature is gone.