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Mailcowvstwinny

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

Mailcowtwinny
Score77/10063/100
Rank in category#2 of 106 in Email#16 of 120 in AI Assistant
GitHub stars13 7133 685
Stars, last 30 days+215—
Stable releases, 12 months161
Latest release2026-10 · 21 Oct 2026v4.0.20 · 22 Sept 2026
SetupAdvancedModerate
Official Docker imageNoYes
LicenseGPL-3.0MIT
Main languageJavaScriptTypescript

Which one should you pick?

Mailcow scores 77/100 against 63/100 for twinny, so it is the safer default.

Mailcow ships more often: 16 stable releases in the past year, against 1 for twinny.

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

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

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