email

The open-source notification Inbox infrastructure. E-mail, SMS, Push and Slack Integrations.

😱 Falsehoods Programmers Believe in

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

The classic email sending library for PHP

MJML: the only framework that makes responsive-email easy

✉️ Send e-mails with Node.JS – easy as cake!

💌 A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

A free simple responsive HTML email template

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

PHP Email address validator

🧑‍🚀 The better auth and identity infrastructure and the open-source alternative to Auth0. No framework restrictions.

一键自动化 下载、安装、激活 Office 的利器。

Comprehensive mailing tools for PHP

holehe allows you to check if the mail is used on different sites like twitter, instagram and will retrieve information on sites with the forgotten password function.

Low code web framework for real world applications, in Python and Javascript

Prometheus Alertmanager

Tuta 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.

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

Insular email distribution - mail server as Docker images