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MailcowvsPiler

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

MailcowPiler
Score77/10049/100
Rank in category#2 of 106 in Email#61 of 106 in Email
GitHub stars13 713356
Stars, last 30 days+215—
Stable releases, 12 months161
Latest release2026-10 · 21 Oct 2026piler-1.4.9 · 17 Jun 2026
SetupAdvancedAdvanced
Official Docker imageNoYes
LicenseGPL-3.0Other
Main languageJavaScriptPHP

Which one should you pick?

Mailcow scores 77/100 against 49/100 for Piler, so it is the safer default.

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

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

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