10

8

6

4

2


9.2

5.3
Postal

9.2

7.6
Mail-in-a-Box

9.2

8.3
Mailpile

8.5

5.3
docker-mailserver

8.5
0.6
MailHog

8.5

9.8
Mautic

44 Email software solutions and projects

  • Postal

    9.2 5.3 Ruby
    A fully featured open source mail delivery platform for incoming & outgoing e-mail

  • Mail-in-a-Box

    9.2 7.6 L3 Python
    Turns any Ubuntu server into a fully functional mail server with one command.

  • Mailpile

    9.2 8.3 L2 Python
    Webmail client with search, filtering, encryption features and more.

  • docker-mailserver

    8.5 5.3 Shell
    A fullstack but simple mail server

  • MailHog

    8.5 0.6 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

  • MailCatcher

    8.5 4.5 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.

  • Roundcube

    8.4 9.4 L3 PHP
    Browser-based IMAP client with an application-like user interface.

  • Mailtrain

    8.3 6.1 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

    8.1 7.2 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

    7.7 9.8 JavaScript
    Tutanota is the end-to-end encrypted mail client that enables you to communicate securely with anyone.

  • ProtonMail Web Client

    7.6 9.7 JavaScript
    Official AngularJS web client for the ProtonMail secure email service.

  • formspree

    7.5 6.1 L3 Python
    Easy HTML form without PHP or JavaScript

  • 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.

  • Mailu

    6.7 9.4 Python
    Mailu is a simple yet full-featured mail server as a set of Docker images.

  • Modoboa

    6.7 7.8 L5 Python
    Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.

  • Mailman

    5.9 0.7 L5 Ruby
    The Gnu mailing list server.

  • Maildrop

    5.4 1.4 CSS
    Disposable email SMTP server, also useful for development.

  • Exim

    5.1 9.2 L1 C
    Message transfer agent

  • Cypht

    4.9 9.1 L4 PHP
    A feed reader for your email accounts.

  • Dovecot

    4.9 9.7 L3 C
    IMAP and POP3 server written primarily with security in mind.

  • 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

    4.1 8.4 L2 C
    Secure SMTP server implementation from the OpenBSD project.

  • Slimta

    3.1 4.1 L5 Python
    Mail Transfer Library built on Python.

  • Dada Mail

    3.0 8.5 L3 Perl
    A web-based list management system that can be used for announcement lists and/or discussion lists.

  • phpList

    2.8 2.7 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.

  • Courier MTA

    1.9 5.9 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.

  • Postfix

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

  • Simple NixOS Mailserver

    - -
    A complete mailserver solution leveraging the Nix Ecosystem.

  • Citadel

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

  • SquirrelMail

    - -
    Another browser-based IMAP client.

  • Schleuder

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

  • IMP

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

  • Sympa

    - -
    A mailing list manager.

  • Qmailtoaster

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

  • Cyrus IMAP/POP3

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

  • Sendmail

    - -
    Message transfer agent
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