MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Kingmailer - Kingmailer helps you send, receive and route/forward emails.
Groupmail - Groupmail is an email marketing platform enabling marketers to create newsletters, track email marketing campaigns and gain insights.
Awesome Mails - Awesome Mails creates beautiful image map emails, featuring an easy to use drag-and-drop editor...
SmartrMail - SmartrMail is the easiest way to send best practice newsletters and automations for your store
Marble Responsive Email Designer - Marble helps you design beautiful and mobile-friendly emails and newsletters.