The Show newsletter signup card can be used to display any newsletter signup template that you have created to your audience. The signed up emails are placed into active ESP mailing list(s) that have been selected in this card.
Similar to the Show offer card, the Show newsletter signup card will support "Modal" and "Inline" display. If you select modal, you'll have the additional option of deciding whether or not you want your newsletter to be dismissible.
In case you don't want to show this template to users who already have signed up for a newsletter during their current browser session, you can enable the following toggle: