Top 18 open-source products relevant to Self-hosted Email

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Open Source

An open source mailserver suite.

Open Source

Web-based IMAP email client.

Open Source

A fully fledged, free email server solution, an open source project (GPL v2).

Open Source

SOGo is groupware server with a focus on scalability and open standards.

Open Source

SquirrelMail is a standards-based webmail package written in PHP.

Open Source

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

Open Source

Cal and CardDAV server.

Open Source

Self hosted modern mail server.

Open Source

The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.

Open Source

Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...

Open Source

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...

Open Source

Open source SMTP server written in Node.js.

Open Source

DBMail is a fast, scalable IMAP4 and POP3 server that stores all email and users in a Postgresql...

Open Source

Lightweight CalDAV/CardDAV server on top of Git.

Open Source

KumoMTA is the world's first Open-Source MTA designed from the ground-up for large-volume senders. Get a fast, flexible, supported solution.

Open Source free

The Cyrus IMAP server differs from other IMAP server implementations in that it is generally...

Open Source

Archiveopteryx stores email in a database and provides access to it through IMAP and more.

Open Source