Thank you for your response.
I figured out something else: i created an HTML template for that. That looks ok, but not as fantastic as it should have been by using your Newsletter options.
It would have been nice, on a future update, if you could play around with the Newsletters shortcodes like with any other plugin out there. And by saying this it means that you get some freedom on a design level from the users’ perspective. Just copy-paste a shortcode of your own created newsletter and send it as a welcome email to your target audience in a more creative manner and makes it a bit more personal.