Please follow the installation instructions.
It is recommended to review the Settings and configure the email account that should be used to send your newsletters under SMTP Email Settings.
Create the Subscription Activation Page. That’s the one thing you should really set up so people can subscribe and activate their subscription easily. You can customize the page later on, for example by enabling reCAPTCHA.
You can also import your existing subscribers under Import Subscribers.
Now you’re ready to start a newsletter campaign!
Another interesting page that can be created is the Newsletters Page. This page offers a list of newsletters along with a newsletter search form and a story tag cloud.