Mailpile Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and... Free Open Source Mac Windows Linux Web Self-Hosted ... OpenPGP POP3 Support Add a feature 100 Like
Rainloop Simple, modern & fast web-based email client. Modest system requirements, decent performance, simple installation and upgrade, no database required. All these make... Free Open Source Self-Hosted JavaScript PHP Cloudron Encrypted email Add a feature 37 Like PHP based and customizable more than roundcube, more modern ui Guest • Sep 2017 Disagree Agree
Horde Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards... Free Open Source Web Self-Hosted CalDAV Add a feature 24 Like
Kolab Community Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite. Free Open Source Linux Web Self-Hosted CalDAV CardDAV Real time collaboration Support for WebDAV Add a feature 34 Like
Squirrelmail SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure... Free Open Source Self-Hosted PHP On-premises software Add a feature 23 Like
iRedMail A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD distributions, with both i386 and x86_64... Free Open Source Linux BSD Self-Hosted No features added Add a feature 16 Like
Webmail Lite Open Source WebMail Lite is a free community edition of full-featured WebMail Pro server application intended for users who need a clean and simple web mail... Free Open Source Web Self-Hosted No features added Add a feature 15 Like
NeutronMail Self-hosted server for the ProtonMail client. Free Open Source Web Self-Hosted End-to-end encryption Add a feature 7 Like
Mail-in-a-box Take back control of your email with this easy-to-deploy mail server in a box. Mail-in-a-Box turns a fresh cloud computer into a working mail server. You get contact... Free Open Source Self-Hosted ownCloud Roundcube No features added Add a feature 10 Like
CacoCloud A simple, fast and secure PHP/AngularJS based single user feed and mail reader, password and bookmark manager. CacoCloud is divided into a RESTful PHP backend storing... Free Open Source Self-Hosted AngularJS No features added Add a feature 9 Like
Cypht All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into... Free Open Source Self-Hosted Built-in RSS reader End-to-end encryption Modules POP3 Support Add a feature 4 Like
Modoboa Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface . It provides useful components such as an administration panel or... Free Open Source Linux Self-Hosted Modular System Add a feature 5 Like
PrivMX WebMail Alternative, self-hosted private mail system. End-to-end encryption for messages and attachments. Easy to install and administration. Allows also to create end-to-end... Free Self-Hosted PHP End-to-end encryption Add a feature 1 Like
