Insular email distribution - mail server as Docker images

• UpdatedNov 3, 2025
• Python

Monorepo hosting the proton web clients

• UpdatedNov 6, 2025
• TypeScript

Simple, modern & fast web-based email client

• UpdatedAug 20, 2024
• PHP

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

• UpdatedOct 20, 2025
• Go

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.

• UpdatedMar 6, 2025
• C

Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services)

• UpdatedNov 5, 2025
• PHP

💌 Mail app for Nextcloud

• UpdatedNov 6, 2025
• JavaScript

Lightweight webmail inspired by Gmail

• UpdatedDec 23, 2022
• Python

Self-hosted server for the ProtonMail client

• UpdatedJan 7, 2018
• Go

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

• UpdatedNov 8, 2019
• PHP

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

• UpdatedDec 29, 2022
• TypeScript

Open-source webmail script for existing IMAP server

• UpdatedOct 8, 2025
• Shell

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

• UpdatedNov 5, 2025
• PHP

Isotope Mail Client

• UpdatedJan 13, 2023
• JavaScript

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

• UpdatedJan 22, 2023
• Shell

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

• UpdatedJul 26, 2022
• PHP

Self-hosted webmail client greatly inspired by Google Inbox

• UpdatedMar 7, 2023
• TypeScript

The webmail of Modoboa

• UpdatedAug 18, 2024
• Python

The Angular implementation of Reply.

• UpdatedJan 15, 2024
• TypeScript

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

• UpdatedApr 22, 2025
• PHP