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PontoonvsStalwart Mail Server

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

PontoonStalwart Mail Server
Score44/10079/100
Rank in category#8 of 8 in Data Pipeline#2 of 16 in Mail Server
GitHub stars24415 470
Stars, last 30 days+0+667
Stable releases, 12 months031
Latest release—v1.0.1 · 28 Oct 2026
SetupModerateModerate
Official Docker imageYesYes
LicenseOtherAGPL-3.0-only AND LicenseRef-SEL
Main languagePythonRust

Which one should you pick?

Stalwart Mail Server scores 79/100 against 44/100 for Pontoon, so it is the safer default.

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

Stalwart Mail Server is growing faster right now (+667 stars in 30 days).

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