Top 565 email open source projects

Template generator for (responsive) emails & email signatures ✨

The Official Twilio SendGrid Led, Community Driven Ruby API Library

A web interface for browsing Ruby on Rails sent emails

An extension for Thunderbird that allows you to view threads as "real" conversations, including your own emails. This extension also adds a bunch of useful UI features in the conversation view.

C# library that moves your stylesheets to inline style attributes, for maximum compatibility with E-mail clients.

MFCMAPI

Check if an email address exists without sending any email, written in Rust.

Glass - ISC DHCP Server Interface

Asynchronous email client for your terminal

A Python Mail Server

A graphical threads-with-tags style, lightweight and fast, e-mail client for Notmuch

💌 An extensible desktop mail app built on the modern web.

Sieve Script Editor

A Gatsby email *application*

HEML is an open source markup language for building responsive email.

Virtual Mailbox Administration

A few simple, but solid patterns for responsive HTML email templates and newsletters. Even in Outlook and Gmail.

A cross-platform .NET library for IMAP, POP3, and SMTP.

The DIME resolver library and command line utilities.

💌💨 Email Campaign Delivery built with GoLang inspired by GoHugo

A list of disposable/temporary email address domains

Prometheus Alertmanager

Tutanota is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

An open source email campaign management tool for nonprofits

Easily send great-looking HTML email messages from R

Common packages for Go

The Official Twilio SendGrid Led, Community Driven Java API Library

Exchange Transport rules to detect and enable response to phishing

Full-featured, open source mail server solution for mainstream Linux/BSD distributions.

🦘 The Grouparoo Monorepo - open source customer data sync framework

The best (weekly) newsletters

Edit and send email messages

Send email across all platforms using one interface

📮 Nifty Gmail desktop app for macOS, Linux & Windows

Delta.Chat C-Library with e2e chat-over-email functionality & Python bindings

Fast email-fetching and sending and two-way tag synchronization between notmuch and GMail

Jigsaw-based PHP build system for rapid HTML email development with Tailwind CSS.

Delta Chat Rust Core library, used by Android/iOS/desktop apps and bindings

📫 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!

Jenkins Email Extension Plugin

Add a simple contact form to your Craft CMS site.

Track prices on Amazon and receive email alerts for price drops

C# Outlook MSG file reader without the need for Outlook

The classic email sending library for PHP

😱 Falsehoods Programmers Believe in

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

Slack alternative, email integrated, build with Meteor

Configure Magento 2 to send email using Google App, Gmail, Amazon Simple Email Service (SES), Microsoft Office365 and many other SMTP (Simple Mail Transfer Protocol) servers

Mercure is a tool for security managers who want to train their colleague to phishing.

React component library to generate the HTML emails on the fly

Validate email for common typos and one-time email providers

Send email campaigns using Laravel

Collaborative open-source successor to qmail

a easy solution for simple IMAP email access in php

Angular V8 wrapper for linkifyjs - library for finding links in plain text and converting them to HTML <a> tags via linkifyjs

A cross-platform IMAP library for .NET, supporting .Net 2.0 - 4.5, Mono and Windows Phone

Delta.Chat bot written in Python

Super simple email open/click tracking server.

Monitor a website and get email and Slack notifications when specific changes are detected

A Docker container which runs the mbsync tool automatically to synchronize your email