26/07/2015

• mail-tester.com : Free online service that allows you to test your emails for Spam, Malformed Content and Mail Server Configuration problems
• Substack : Substack is an online platform that provides publishing, payment, analytics, and design infrastructure to support subscription newsletters.
• N1 : N1 is an open-source mail client built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new e...
• Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
• Tutanota : Tutanota is an open-source end-to-end encrypted email software and freemium hosted secure email service based on this software