26 Open source projects that are alternatives of or similar to webmail

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

Application for Zimbra Email Service

Webmail front-end for existing mail server, with personal calendar, contacts, and mobile sync.

邮件收取工具包，支持pop，imap，exchange协议的邮箱以及企业邮箱

IMAP (version 4rev1) implementation for dart

Mail Toaster 6

IMAP protocol parser and datastructures in Rust

IMAP, POP3 and SMTP clients for Dart developers. Contains both low level as well as a high level API.

Insular email distribution - mail server as Docker images

Open-source webmail script for existing IMAP server

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

Isotope Mail 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.

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

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

A secure and PGP enabled webmail module for Phosphorus Five

Lightweight webmail inspired by Gmail

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

Cypht: Lightweight Open Source webmail written in PHP and JavaScript

💌 Mail app for Nextcloud

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.

Simple, modern & fast web-based email client

Monorepo hosting the proton web clients

A free & open modern, fast email client with user-friendly encryption and privacy features

A cross-platform .NET library for IMAP, POP3, and SMTP.