https://www.rsjoomla.com/video-tutorials/rsformpro/ep-39-create-newsletter-subscription-forms-with-rsformpro-and-rsmail.html
Ep. 39: Create newsletter subscription forms with RSForm!Pro and RSMail!
Joomla Video Tutorials - Learn how to create custom subscription forms with RSMail! and RSForm!Pro.
create newslettersubscription formsep