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Stalwart Mail ServervsTerraforming Mars

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

Stalwart Mail ServerTerraforming Mars
Score79/10062/100
Rank in category#2 of 16 in Mail Server#4 of 14 in Gaming
GitHub stars15 473961
Stars, last 30 days+670+9
Stable releases, 12 months310
Latest releasev1.0.1 · 28 Oct 2026—
SetupModerateModerate
Official Docker imageYesYes
LicenseAGPL-3.0-only AND LicenseRef-SELGPL-3.0
Main languageRustTypescript

Which one should you pick?

Stalwart Mail Server scores 79/100 against 62/100 for Terraforming Mars, so it is the safer default.

Stalwart Mail Server ships more often: 31 stable releases in the past year, against 0 for Terraforming Mars.

Stalwart Mail Server is growing faster right now (+670 stars in 30 days).

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