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docker-smtpvsMailcow

Two self-hosted Email projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

docker-smtpMailcow
Score38/10077/100
Rank in category#88 of 106 in Email#2 of 106 in Email
GitHub stars14513 713
Stars, last 30 days—+215
Stable releases, 12 months016
Latest release—2026-10 · 21 Oct 2026
SetupEasyAdvanced
Official Docker imageYesNo
License—GPL-3.0
Main languageShellJavaScript

Which one should you pick?

Mailcow scores 77/100 against 38/100 for docker-smtp, so it is the safer default.

Mailcow ships more often: 16 stable releases in the past year, against 0 for docker-smtp.

If you want the quickest setup, docker-smtp is easier to run; Mailcow needs more configuration.

Mailcow is growing faster right now (+215 stars in 30 days).

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