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Email Servers & Services

Replaces: Gmail Server, Exchange

Self-hostable email servers and privacy-friendly email services. Independent alternatives to Gmail Server and Microsoft Exchange.

🛡️ 9 Open Source Tools
M

Mailcow

Complete email server suite with Docker-based installation

9.2k
↳GmailExchange
GPL-3.0●● Medium
Aug 2026
M

Mail-in-a-Box

One-click email server for individuals and small teams

14.0k
↳GmailExchange
CC0-1.0●● Medium
May 2026
I

iRedMail

Professional open-source mail server with enterprise features

1.5k
↳GmailExchange
GPL-3.0●●● Advanced
Aug 2026
P

Postfix+Dovecot

The classic combination for custom email server configurations

800
↳GmailExchange
EPL-2.0 / MIT●●● Advanced
Aug 2026
S

Stalwart Mail

Modern all-in-one mail server written in Rust

5.5k
↳GmailExchange
AGPL-3.0●● Medium
Aug 2026
L

Listmonk

Single-binary newsletter and mailing-list manager

17.0k
↳MailchimpSendinblue
AGPL-3.0●● Medium
Aug 2026

Relay

✉️ Open-Source Email API for Developers. Self-hosted Alternative to SES, Mailgun, SendGrid.

524
↳Gmail-ServerExchange
AGPL-3.0●● Medium
Jul 2026

Bichon

Bichon – A lightweight, high-performance Rust email archiver with WebUI

1.6k
↳Gmail-ServerExchange
AGPL-3.0● Easy
Aug 2026

Opentrashmail

Standalone trashmail solution that ships its own mail server

861
↳Gmail-ServerExchange
Apache-2.0●● Medium
Aug 2025