In the form click on [Source code / Distribution] > [Subscribe] or [Source code / Distribution] > [Unsubscribe].
Here you can now activate SSL.
Important notes:
- If you use SSL for your forms you can do this exclusively with the CleverReach domain in your account. This domain will be entered into the source code of your form. So, should you be using a custom domain for your account this will be disregarded in this case. This, however, is not the case for the confirmation link for your subscription/unsubscribe pages.
- The SSL functionality is only available for forms you embed on your website.