MailOptin – Email & Newsletter Marketing Plugins for WordPress
MailOptin aims to be a complete solution for email marketing via WordPress. It connects with a wide variety of third-party providers (MailChimp, Constant Contact, etc.). But it also enables you to create list signup forms that can be implemented in several ways and even let you send mail to your lists from within WordPress.
You can run your entire email marketing operation without leaving your website. A premium version adds automation capabilities, like sending out new post notifications, enables mail scheduling and more.
credit : MailOptin Popup Builder Team