MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Mailmeteor - Send hundreds of personalized emails with Gmail.
Kingmailer - Kingmailer helps you send, receive and route/forward emails.
GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
Awesome Mails - Awesome Mails creates beautiful image map emails, featuring an easy to use drag-and-drop editor...
Email on Acid - We make the send button safer. For every campaign, every message, and every inbox, Email on Acid has the time-saving tools you need to put your best email forward.