Default templates are provided in the plugin’s templates folder.
The base templates used to display stories and newsletters on the site are located in the plugin’s
templates folder :
The template used to render newsletters in emails is
taxonomy-newsletter.php located in the plugin’s
You can override these templates in your theme by recreating the same folder structure in your theme’s base directory.
A public template repository Groups Newsletters Templates is maintained on GitHub. This repository gathers theme-specific templates for Groups Newsletters.