Insular email distribution - mail server as Docker images

Monorepo hosting the proton web clients

Simple, modern & fast web-based email client

The magma server daemon, is an encrypted email system with support for SMTP, POP, IMAP, HTTP and MOLTEN,. Additional support for DMTP and DMAP is currently in active development.

Disposable webmail server (similar to Mailinator) with built in SMTP, POP3, RESTful servers; no DB required.

Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and soon EWS

💌 Mail app for Nextcloud

Lightweight webmail inspired by Gmail

Self-hosted server for the ProtonMail client

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

An ad-hoc disposable temporary mail server. Create and use ad hoc disposable mailboxes for testing or any other purpose.

Open-source webmail script for existing IMAP server

Web based groupware server written in PHP, forum at https://help.egroupware.org/

Isotope Mail Client

poste.io mail server, but with IP management and custom webmail plugins

IMAP ➝ SQL syncing engine, JavaScript-free email client, and a Kanban-style email client

Self-hosted webmail client greatly inspired by Google Inbox

The webmail of Modoboa

The Angular implementation of Reply.

🌰️🐿️ SquirrelMail GitHub Repository (PHP 7-OK!)