Newsletter is a great tool for creating user lists and preparing, sending and tracking e-mails to subscribers. With over 200,000 downloads, it is by far one of the most popular newsletter plugins for WordPress.
Looking for an alternative to Aweber or MailChimp? Take a look at the MailPoet Newsletters plugin for WordPress. You can offer subscription forms, maintain a list of subscribers, send newsletters and autoresponders, with this one-stop, easy-to-use plugin.