Communication - Email - Complete Solutions
Sorted by GitHub stars, which measures attention rather than fitness. Read the release date and the commit count next to it before picking one.
| Tool | Stars |
|---|---|
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database. MIT · released 2026-09-04 | 18,828 |
Complete and fully featured mail server for use by websites & web servers. MIT · released 2026-06-03 | 16,796 |
Turns any Ubuntu server into a fully functional mail server with one command. CC0-1.0 · released 2026-05-24 | 15,412 |
All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features. AGPL-3.0 · released 2026-09-06 | 14,575 |
Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration. GPL-3.0 · released 2026-08-18 | 13,390 |
Simple yet full-featured mail server as a set of Docker images. MIT · released 2026-08-12 | 7,498 |
Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps. MIT · released 2026-08-11 | 6,971 |
All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon. GPL-3.0 · released 2026-05-23 | 6,080 |
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. MIT · released 2026-08-19 | 5,846 |
Email forwarding service for creating aliases. MIT · released 2026-09-02 | 4,832 |
Mail hosting and management platform including a modern and simplified web user interface. ISC · released 2026-09-06 | 3,537 |
Scalable no-SPOF IMAP/POP3 mail server. EUPL-1.2 · released 2026-09-07 | 2,109 |
Full-featured mail server solution based on Postfix and Dovecot. GPL-3.0 · released unknown | 1,841 |
Privacy-focused encrypted email for everyone. All-in-one alternative to Gmail + Mailchimp + Sendgrid. BUSL-1.1, MPL-2.0 · released 2026-09-04 | 1,668 |
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. GPL-3.0 · released 2026-03-13 | 1,419 |
Complete mailserver solution leveraging the Nix Ecosystem. GPL-3.0 · released 2019-12-16 | 314 |
Lets you have an infinite number of unique inboxes. GPL-3.0 · released unknown | n/a |
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. GPL-2.0 · released unknown | n/a |
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