Gmail

Email tied to a Google account, free because the account is the product surface for Google's business.

6 self-hosted replacements in this index, ranked by GitHub stars in the dataset.

Replacements

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.
19,715 stars Active
31 Oct 2026 v16.0.1
Mail-in-a-Box
Turns any Ubuntu server into a fully functional mail server with one command.
15,453 stars Active
22 Oct 2026 v77
Mailcow
Mail server suite based on Dovecot, Postfix and other software, that provides a modern Web UI for administration.
13,728 stars Active
21 Oct 2026 2026-10
Roundcube
Browser-based IMAP client with an application-like user interface.
7,253 stars Active
25 Oct 2026 1.7.5
SnappyMail
Simple, modern, lightweight & fast web-based email client (fork of RainLoop).
1,738 stars Active
2 Nov 2026 v2.38.2.1
Poste.io
Full-featured solution for your Email server. Native implementation of last anti-SPAM methods, webmail and easy administration included. Free tier available.
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