1. Login to the webmail facility at DDNS
  2. Click on Settings in the top right.
  3. Select Identities, which is the 3rd option in the first column on the left.
  4. This will give you a list of the identities created on this account. Typically there will only be one. Click on it.
  5. Scroll down and you will see a box for the Signature which supports HTML formatted text.
  6. Adjust signature and click save.
Note: Signature does not currently support upload and embedding of images. You can use HTML to reference an external image if desired.