is there a build in function (or premium extension) which allows to restrict the newsletter subscription and subscription form only to logged in users? I am going to use an existing external user-database for log in, so connecting the newsletter to the registration doesn´t work. And i dont want to add all existing user. Logged in users should have the form to chose if and what newsletter list they want to subscribe.
Is this possible with this plugin and how can i archive that?
Thank you very much!