Self-hosted Communication - Email - Complete Solutions software

Simple deployment of E-mail servers, e.g. for inexperienced or impatient admins.

18 apps, ranked by GitHub stars weighted by maintenance health.

Alternatives to Gmail

docker-mailserver

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database.

Actively maintained ★ 19.7k MIT 🐳 Docker~$20/mo

Postal

Complete and fully featured mail server for use by websites & web servers.

Actively maintained ★ 16.9k MIT 🐳 Docker~$20/mo

Stalwart Mail Server

All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features.

Actively maintained ★ 15.7k AGPL-3.0 🐳 Docker~$20/mo

Mail-in-a-Box

Turns any Ubuntu server into a fully functional mail server with one command.

Actively maintained ★ 15.5k CC0-1.0 ~$20/mo

Mailcow

Mail server suite based on Dovecot, Postfix and other software, that provides a modern Web UI for administration.

Actively maintained ★ 13.7k GPL-3.0 🐳 Docker~$40/mo

Mailu

Simple yet full-featured mail server as a set of Docker images.

Actively maintained ★ 7.6k MIT 🐳 Docker~$20/mo

SimpleLogin

Email alias solution to protect your email address. Comes with browser extensions and mobile apps.

Actively maintained ★ 7.1k MIT 🐳 Docker~$20/mo

Maddy Mail Server

All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon.

Actively maintained ★ 6.1k GPL-3.0 🐳 Docker~$20/mo

Mox

Complete e-mail solution with IMAP4, SMTP, SPF, DKIM, DMARC, MTA-STS, DANE and DNSSEC, reputation-based and content-based junk filtering, Internationalization (IDNA), automatic TLS with ACME and Let's Encrypt, account autoconfiguration, and webmail.

Actively maintained ★ 5.9k MIT ~$20/mo

AnonAddy

Email forwarding service for creating aliases.

Actively maintained ★ 4.9k MIT 🐳 Docker~$20/mo

Modoboa

Mail hosting and management platform including a modern and simplified web user interface.

Actively maintained ★ 3.5k ISC ~$20/mo

wildduck

Scalable no-SPOF IMAP/POP3 mail server.

Actively maintained ★ 2.1k EUPL-1.2 🐳 Docker~$20/mo

iRedMail

Full-featured mail server solution based on Postfix and Dovecot.

Actively maintained ★ 1.8k GPL-3.0 ~$20/mo

Forward Email

Privacy-focused encrypted email for everyone. All-in-one (alternative to Gmail, Mailchimp, Sendgrid).

Actively maintained ★ 1.7k BUSL-1.1, MPL-2.0 🐳 Docker~$20/mo

DebOps

Your Debian-based data center in a box. A set of general-purpose Ansible roles that can be used to manage Debian or Ubuntu hosts.

Actively maintained ★ 1.4k GPL-3.0 🐳 Docker~$20/mo

Simple NixOS Mailserver

Complete mailserver solution leveraging the Nix Ecosystem.

Maintained ★ 320 GPL-3.0 ~$20/mo

b1gMail

Complete email solution that runs on any webspace with PHP and MariaDB. It supports POP3 catchall mailboxes and can also integrate with Postfix or b1gMailServer if you're running your own server.

Health unknown GPL-2.0 ~$20/mo

Inboxen

Lets you have an infinite number of unique inboxes.

Health unknown GPL-3.0 ~$20/mo