While the content digest email automatically builds an email containing posts sent to your Members, Newsletters allow you to fully customize a single email with content for a wider audience. To view the Newsletters page, go to Content > Newsletters.
The Newsletters page displays your most recent Newsletters, along with details about each specific newsletter, including divisions, when it was created, modified, or broadcast. Click on the Title to open the Newsletter and view it as it was sent to your Members.
You can also view the performance stats of your newsletter by going to Content > Broadcasts > Broadcast Analytics and selecting Newsletter from the Attachment dropdown menu.