OpenEMM

vs

uCampaign

A set of powerful APIs that enables your application to send, receive and track transactional emails effortlessly. Mailgun provides a global infrastructure and industry expertise that helps you get your message across to the right person at the right time. The service is trusted by over 150,000 businesses including giants like Microsoft, MIT, NHL and Lyft.

Mailjet is an easy-to-use all-in-one email delivery service and marketing platform. Over130,000 marketers in 150 countries use Mailjet as their primary email marketing tool. With Mailjet users can manage everything from transactional emails via the Developer API to email marketing campaigns and email template building. The interface provided by Mailjet makes it really easy to monitor your marketing campaigns, and track open-rate, link clicks and customer related metrics.

MailerLite is an email marketing service and tool provider that brings features designed to help users grow subscribers and build stronger relationships. The experience provided by MailerLite is fresh, intuitive, and loved by many of its users. It includes everything from a drag & drop editor for email templates to automation features that can be used to stay connected with your customer-base.