I have found this interesting article about the Go-To Actions and it's working only for customers who are using Gmail, but with the addition of a small piece of html code, the users will see in their inbox the email subject and directly under it a button with a direct link to any url we want them to visit. So this small button can have any description that we want, like "Claim a discount" or "Check this new product" etc.
[
developers.google.com...]
Has anyone used that?
At our company we have made some tests with our emailing application and unfortunately there is no such button appearing under the subject.
