Set up your email account(s) using the Spark tutorial:

Once the app has been installed and set up, to configure your signature, simply go to the "Settings" menu:



Select the “Signatures” tab:



In your user interface, under the “Email signatures” section, select and copy the “HTML code” displayed below the signature:



In Spark, click the “Add a signature” button, then the “HTML” button, and paste your code:



When you exit “HTML” mode, you can also add text to your signature.

And there you have it – your signature is set up and will be automatically updated whenever you make changes in future.

All that’s left is to test your signature by sending yourself an email BUT PLEASE NOTE: the link in your signature is NEVER active whilst you’re editing the email; it only becomes active once you’ve received it.