Best 207 Email Open Source Projects


The classic email sending library for PHP


Comprehensive mailing tools for PHP

Nylas Mail

:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!

Grunt Email Workflow

A Grunt workflow for designing and testing responsive HTML email templates with SCSS.

Email Templates

:mailbox: Create, preview, and send custom email templates for Node.js. Highly configurable and supports automatic inline CSS, stylesheets, embedded images and fonts, and much more!

React Email Editor

Drag-n-Drop Email Editor Component for React.js


Golang package that generates clean, responsive HTML e-mails for sending transactional mail

Learn To Send Email Via Google Script Html No Server

:email: An Example of using an HTML form (e.g: "Contact Us" on a website) to send Email without a Backend Server (using a Google Script) perfect for static websites that need to collect data.

Dank Selfhosted

Automated solution for hosting email, web, DNS, XMPP, and ZNC on OpenBSD.


Tutanota is an email client with a strong focus on security and privacy that lets you encrypt emails on all your devices.


🦘 The Grouparoo Monorepo - open source customer data sync framework


Mail hosting made simple

Django Anymail

Django email backends and webhooks for Amazon SES, Mailgun, Mailjet, Postmark, SendGrid, Sendinblue, SparkPost and more


📫 A serverless email server on AWS using S3 and SES


Testable, composable, and adapter based Elixir email library for devs that love piping.