MailOptin is a form builder for creating popups, subscribe forms, user registration form and sending email newsletters.
Displays signup forms, targeted messages and call-to-actions across your website with popups (lightbox or modal), in-post subscription form, notification bars, slide-in (or scroll box), sidebar widget.
Automatically notify your subscribers and WordPress users every time you publish new content on your blog. MailOptin sends blog posts as email newsletters.