Your rasa.io newsletters come with 2 customizable forms/landing pages - a Top Articles page and Sign Up page. You can customize these two pages by going to the Widgets and Tools section of your dashboard.
The Top Articles page is a personalized landing page that will dynamically update to showcase the most popular articles from your newsletter with the option to sign up at the bottom.
Your Sign Up page is a basic form for users to - you guessed it - sign up for your newsletter. By default, your Subscribe links in the template will bring users to this page. If you do not wish to use this page for your newsletter sign ups, you can enter your own subscribe links in the Design > Footer > Additional Links section.