OpenEMM

vs

Omnisend

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.

With Mailforge, you can manage your email marketing via a user-friendly drag-and-drop interface. Mailforge is a email marketing platform dedicated to improve email marketing and help people without technical knowledge to create amazing mobile-friendly newsletters that can grow their business. The tool allows users to create stunning newsletters converting popups that achieve maximum reach and interactions.

Postmark is a fast and reliable transactional email service that is trusted by thousands of developers across the globe. With Postmark, you can rest assured that your emails will arrive, on time. And if an issue was to occur Postmark provides 45 days of full content history, recipient information, and message events to help you get to the bottom issues. If that's not enough they also provide great support via email, live-chat, or 1-on-1 calls.

Mailchimp is an all-in-one integrated marketing platform that gives you the tools and guidance you need to build your brand and make things happen. Mailchimp is used by startups, e-commerce sites, retail sites, and mobile/web applications to grow and manage their email list and connect with customers world-wide. As a user of Mailchimp you can enjoy drag & drop template building, a unified CRM experience and an audience dashboard that can be used to better understand your customers and how to connect with them.