Kingmailer - Kingmailer helps you send, receive and route/forward emails.

Yesmail - Yesmail provides email marketing solutions that integrate mobile, web, and social channels for marketers.

Flexmail Solution - Professional email marketing with powerful and easy-to-use features

PostageApp - PostageApp is an email management service that makes it easy to design, deliver, and manage all of the email that websites or applications send.

Dragon Responsive Email Designer - Dragon Email Designer provides an intuitive drag and drop newsletter design tool.

SendGrid - Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free