10

8

6

4

2


9.3

8.2

9.3

7.6

9.2

5.8

8.6

9.5

8.5

6.4

50 Email software solutions and projects

  • Mailpile

    9.3 8.2 L2 Python
    Webmail client with search, filtering, encryption features and more.
  • Mail-in-a-Box

    9.3 7.6 L3 Python
    Turns any Ubuntu server into a fully functional mail server with one command.
  • Postal

    9.2 5.8 Ruby
    A fully featured open source mail delivery platform for incoming & outgoing e-mail
  • docker-mailserver

    8.7 8.6 Shell
    A fullstack but simple mail server
  • Roundcube

    8.6 9.5 L3 PHP
    Browser-based IMAP client with an application-like user interface.
  • MailCatcher

    8.5 6.4 L5 Ruby
    Ruby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development.
  • MailHog

    8.5 0.4 Go
    Small Golang executable which runs an SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development.
  • Mautic

    8.5 9.8 L2 PHP
    Mautic is marketing automation software
  • Mailtrain

    8.4 3.7 HTML
    self hosted newsletter application built on Node.js
  • Haraka

    8.2 8.2 L3 JavaScript
    A high-performance, pluginable SMTP server written in JavaScript.
  • RainLoop

    8.2 6.8 L3 PHP
    Simple, modern & fast webmail with IMAP/SMTP Support and multi accounting.
  • Mail For Good

    8.1 0.1 JavaScript
    An open source email campaign management tool for nonprofits.
  • Tutanota makes encryption easy

    8.0 9.8 JavaScript
    Tutanota is the end-to-end encrypted mail client that enables you to communicate securely with anyone.
  • ProtonMail Web Client

    7.8 9.2 JavaScript
    Official AngularJS web client for the ProtonMail secure email service.
  • Listmonk

    7.8 7.8 Go
    High performance, self-hosted newsletter and mailing list manager with a modern dashboard.
  • formspree

    7.6 2.3 L3 Python
    Easy HTML form without PHP or JavaScript
  • Mailu

    7.1 8.9 Python
    Mailu is a simple yet full-featured mail server as a set of Docker images.
  • Modoboa

    6.9 7.3 L5 Python
    Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.
  • Mailcow

    6.8 1.0
    Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration.
  • wildduck

    6.0 8.4 JavaScript
    Scalable no-SPOF IMAP/POP3 mail server.
  • Mailman

    5.9 0.7 L5 Ruby
    The Gnu mailing list server.
  • Maildrop

    5.4 1.3 CSS
    Disposable email SMTP server, also useful for development.
  • Dovecot

    5.2 9.6 L3 C
    IMAP and POP3 server written primarily with security in mind.
  • Exim

    5.2 9.5 L1 C
    Message transfer agent
  • Cypht

    5.0 7.3 L4 PHP
    A feed reader for your email accounts.
  • WebMail Lite

    4.8 0.9 L2 PHP
    Web-based IMAP Mail client.
  • MailyHerald

    4.6 0.0 L5 Ruby
    Self-hosted Mailchimp alternative that you can easily integrate with your site. Helps you send and manage your application mailings. It support email marketing and conducting the daily stream of notifications you send to your users.
  • OpenSMTPD

    4.3 9.3 L2 C
    Secure SMTP server implementation from the OpenBSD project.
  • Disposable Mailbox

    4.3 5.6 PHP
    Simple disposable mailbox web-app based on a catch-all IMAP mailbox.
  • Slimta

    3.2 2.9 L5 Python
    Mail Transfer Library built on Python.
  • homebox

    3.2 9.3 Python
    Suite of Ansible scripts to deploy a fully functional mail server on Debian. Unobtrusive and automatic as much as possible, focusing on stability and security.
  • Dada Mail

    3.0 8.6 L3 Perl
    A web-based list management system that can be used for announcement lists and/or discussion lists.
  • phpList

    2.7 2.5 L2 PHP
    Newsletter and email marketing with advanced management of subscribers, bounces, and plugins.
  • Inboxen

    2.7 8.4 Python
    Inboxen is a service that provides you with an infinite number of unique inboxes.
  • MailCare

    2.3 4.9 PHP
    Open source disposable email address service.
  • Courier MTA

    1.8 6.4 L1 C
    Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic web-based calendaring and scheduling services.
  • Piler

    1.1 -
    feature rich open source email archiving solution.
  • Qmail

    1.1 0.0
    Secure Sendmail replacement.
  • iRedMail

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

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

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

    - -
    Stable, full-featured, easy-to-install mail server based on qmail.
  • Simple NixOS Mailserver

    - -
    A complete mailserver solution leveraging the Nix Ecosystem.
  • chasquid

    - -
    SMTP
  • SquirrelMail

    - -
    Another browser-based IMAP client.
  • Cyrus IMAP/POP3

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

    - -
    Message transfer agent
  • Postfix

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

    - -
    A mailing list manager.
  • Schleuder

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

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