Create unsubscribe link in autoresponer email

I set up a form to capture buyers information. Once they press submit, the Thank You goes out and so does an auto responder email.  How do I add the unsubcribe button to the autoresponder email?

If you have a Mailservice provider in your form, you can insert their unsubscribe short code to your autoresponder email.

For example, if you have MailChimp, then you can add the following code where you want your unsubscribe link to appear:
<a href="*|UNSUB|*">Unsubscribe from this list.</a>

You can find that information here http://kb.mailchimp.com/merge-tags/the-unsubscribe-merge-tag

To edit your autoresponder, please see this article. https://www.jotform.com/help/26-Setting-Up-an-Autoresponder-Email

Hope that helps.