You can create an email signature via our RoundCube mail client, all you need to do is open Hosting → Manage → Email Accounts and click a button to open webmail:
Then navigate to Settings -> Identities section, and the email signature will be displayed on the bottom:
You can also enable HTML signature and add an additional picture of your choice to your signature:
If you wish your HTML signature or Hyperlinks to be displayed when composing a new email, be sure to choose Editor type as HTML:
NOTE:
- If you want to know how to create an email signature for cPanel - check this article.