10

8

6

4

2


9.3

7.9
Mail-in-a-Box

9.2

3.4
Postal

9.1
0.0
MailHog

9.1
1.4
Mailpile

9.0

8.7
docker-mailserver

8.8

9.8
Mautic

59 Email software solutions and projects

  • Mail-in-a-Box

    9.3 7.9 L3 Python
    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.

  • Postal

    9.2 3.4 Ruby
    📨 A fully featured open source mail delivery platform for incoming & outgoing e-mail

    • Scout APM uses tracing logic that ties bottlenecks to source code so you know the exact line of code causing performance issues and can get back to building a great product faster.
    Sponsored scoutapm.com

  • MailHog

    9.1 0.0 Go
    Web and API based SMTP testing

  • Mailpile

    9.1 1.4 L2 Python
    A free & open modern, fast email client with user-friendly encryption and privacy features

  • docker-mailserver

    9.0 8.7 Shell
    A fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) using Docker. [Moved to: https://github.com/docker-mailserver/docker-mailserver]

  • Mautic

    8.8 9.8 L2 PHP
    Mautic: Open Source Marketing Automation Software.

  • Roundcube

    8.6 9.4 L3 PHP
    The Roundcube Webmail suite

  • Mailtrain

    8.5 7.7 JavaScript
    Self hosted newsletter app

  • Listmonk

    8.5 9.0 Go
    High performance, self-hosted newsletter and mailing list manager with a modern dashboard. Single binary app.

  • MailCatcher

    8.5 3.7 L5 Ruby
    Catches mail and serves it through a dream.

  • Mailcow

    8.4 9.6 PHP
    mailcow: dockerized - 🐮 + 🐋 = 💕

  • Mail For Good

    8.3 0.0 JavaScript
    An open source email campaign management tool for nonprofits

  • Haraka

    8.3 6.5 L3 JavaScript
    A fast, highly extensible, and event driven SMTP server

  • RainLoop

    8.2 6.7 L3 PHP
    Simple, modern & fast web-based email client

  • Tutanota makes encryption easy

    8.2 9.8 JavaScript
    Tutanota is an email client with a strong focus on security and privacy that lets you encrypt emails on all your devices.

  • ProtonMail Web Client

    7.8 8.7 JavaScript
    Official AngularJS web client for the ProtonMail secure email service.

  • Mailu

    7.8 8.2 Python
    Insular email distribution - mail server as Docker images

  • formspree

    7.5 0.0 L3 Python
    Easy HTML form without PHP or JavaScript

  • Modoboa

    7.0 7.9 L5 Python
    Mail hosting made simple

  • wildduck

    6.5 8.8 JavaScript
    Opinionated email server

  • SimpleLogin

    6.3 8.5 CSS
    The SimpleLogin back-end

  • AnonAddy

    6.0 7.3 PHP
    Anonymous email forwarding

  • DebOps

    6.0 9.7 Jinja
    DebOps - Your Debian-based data center in a box

  • Mailman

    5.9 0.0 L5 Ruby
    The Gnu mailing list server.

  • Dovecot

    5.6 9.9 L3 C
    Dovecot mail server

  • Maildrop

    5.5 0.0 CSS
    Disposable email SMTP server, also useful for development.

  • Exim

    5.4 8.9 L1 C
    Exim Mail Transport Agent - source, testsuite and documentation

  • Cypht

    5.2 8.8 L4 PHP
    Cypht: Lightweight Open Source webmail written in PHP and JavaScript

  • phpList

    5.0 8.8 PHP
    Fully functional Open Source email marketing manager for creating, sending, integrating, and analysing email campaigns and newsletters.

  • WebMail Lite

    4.8 0.0 L2 PHP
    AfterLogic WebMail Lite PHP. Fast and easy-to-use webmail front-end for your existing IMAP mail server, Plesk or cPanel.

  • MailyHerald

    4.8 0.0 L5 Ruby
    Advanced email processing solution for Ruby on Rails applications

  • OpenSMTPD

    4.7 7.9 L2 C
    This is official OpenSMTPD Portable repository. Forks, pull requests and other contributions are welcome!

  • Disposable Mailbox

    4.6 0.0 PHP
    Simple disposable mailbox web-app based on a catch-all IMAP mailbox.

  • homebox

    3.7 2.8 Python
    A set of ansible scripts to build a personal mail server / private cloud / etc.

  • Slimta

    3.3 1.5 L5 Python
    Python libraries to send, receive, and queue email.

  • Inboxen

    3.3 7.6 Python
    Main repo for Inboxen.org

  • Dada Mail

    3.2 8.7 L3 Perl
    Self-Hosted, Full Featured, Email Mailing List Manager. Announcement + Discussion Lists, Web-based Installer, Installs with minimal dependencies, sendmail/SMTP/Amazon SES supported

  • Isotope Mail

    3.0 0.0 JavaScript
    Isotope Mail Client

  • Ptorx

    3.0 1.4 TypeScript
    📩🛡 Email privacy. Anonymously send and receive with alias forwarding.

  • MailCare

    3.0 3.6 PHP
    [MIRRORING REPOSITORY] See https://gitlab.com/mailcare/mailcare. MailCare is an open source disposable email address services. Accessible via web browser or API to protect your privacy right now.

  • AnsiMail

    2.5 7.5 Jinja
    Fullstack, security focused mailserver based on OpenSMTPD for OpenBSD using ansible

  • Courier MTA

    2.1 7.1 L1 C
    Courier Mail Server

  • Lightmeter

    1.1 0.5
    Lightmeter uses GitLab, not GitHub -- find repos at: https://gitlab.com/lightmeter

  • Piler

    1.1 -
    feature rich open source email archiving solution.

  • iRedMail

    1.1 -
    Full-featured mail server solution based on Postfix and Dovecot.

  • Qmail

    1.0 0.0
    Bind to different local ip addresses depending on the domain part of the sender argument when using `qmail-remote`.

  • Simple NixOS Mailserver

    -
    A complete mailserver solution leveraging the Nix Ecosystem.

  • Sendmail

    -
    Message transfer agent

  • Qmailtoaster

    -
    Stable, full-featured, easy-to-install mail server based on qmail.

  • IMP

    -
    HORDE application that provides webmail access to IMAP and POP3 accounts.

  • Citadel

    -
    Feature packed, easy, versatile, and powerful mail server, thanks to exclusive "rooms" based architecture.

  • Cyrus IMAP/POP3

    -
    Intended to be run on sealed servers, where normal users are not permitted to log in.

  • Schleuder

    -
    A GPG-enabled mailing list manager with resending-capabilities.

  • HyperKitty

    -
    Open source Django application to provide a web interface to access GNU Mailman v3 archives.

  • Postorius

    -
    Web user interface to access GNU Mailman.

  • Sympa

    -
    A mailing list manager.

  • SquirrelMail

    -
    Another browser-based IMAP client.

  • Postfix

    -
    Fast, easy to administer, and secure Sendmail replacement.

  • chasquid

    -
    SMTP
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