We wouldn’t leave you hanging without the ability to use your own template, now, would we? Dude. You got to have faith.
To upload your own email template, go to Configure > Configure Emails > +Compose New Email.
Alternatively, you can add your HTML to existing emails. In each WISYWIG editor, you'll see a button that says HTML. Hit it to work your own magic and design your own email masterpiece.
We know we’ve already mentioned this, but please… don’t forget to save your work! Unsaved changes make for frustrated clients.
And that's no good.