We'll create fresh WordPress site with Embed Sendy installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Embed Sendy allows you to embed subscription forms for Sendy through different methods, including a widget, shortcode, or as a Gutenberg block.
I am aware that there are a number of plugins already available for Sendy. Embed Sendy focuses on flexibility add the form in different scenarios where it can be useful and convert more subscribers.