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.
Maintained, but at a slower pace than the leaders in its category.
Commit activity more than 25% of tracked projects; popularity more than 70%. How this is calculated.
Commits, last 11 months
| Stars | 5.9k |
|---|---|
| Latest release | v0.0.17 · 19 Aug 2026 |
| Repo updated | 13 Sept 2026 |
| Licence | MIT |
| Built with | Go |
Is Mox actively maintained?
Development is ongoing. The repository recorded 79 commits over the same window, and the last three months alone account for 64 of them.
The most recent tagged release, v0.0.17, shipped within the last month — a current, installable version exists today.
Mox ranks #9 of 18 in Communication - Email - Complete Solutions, placing it mid-table for maintenance activity.
What Mox actually does
Mox is an all-in-one mail server written in Go that handles both sending and receiving messages. It includes built-in support for standard protocols, cryptographic authentication records, spam filtering, and an integrated webmail interface.
Best fit: Self-hosters who want to run a complete email stack with minimal external dependencies or complex configuration scripts.
Worth knowing: Running a self-hosted mail server involves significant operational overhead regarding IP reputation, delivery issues, and constant security maintenance.
Deployment notes
As a Go application, it typically compiles down to a single binary that requires persistent storage for mail data and access to standard network ports.
Links
Mox as a replacement for
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