Newsletters can be full HTML and you can link to your documents and files that you have previously uploaded.
To add a newsletter click on the + Add Newsletter on the "View Newsletters" page.
Compose your email in the editor. You can insert special tags by clicking on the 4th icon from the right such as first name and last name. The system will replace those tags with the recipient's actual name.
To send a newsletter click on the "Send Newsletter" page.