I added an html code section to one of my emails to add a quick action button for Gmail. The goal is for a “make an appointment” CTA to appear in Gmail. When I send myself a test email, it works.
But when I send the email to a recipient, the quick action button is not displayed.
@stephgauci - I have no immediate solution, but I would probably attack the problem by displaying the email as a web page and looking at the HTML structure that is revealed by that.