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Mailcowvstransfer.sh

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

Mailcowtransfer.sh
Score77/10069/100
Rank in category#2 of 106 in Email#9 of 86 in File Sharing
GitHub stars13 71315 908
Stars, last 30 days+215+11
Stable releases, 12 months160
Latest release2026-10 · 21 Oct 2026—
SetupAdvancedEasy
Official Docker imageNoYes
LicenseGPL-3.0MIT
Main languageJavaScriptGo

Which one should you pick?

Mailcow scores 77/100 against 69/100 for transfer.sh, so it is the safer default.

Mailcow ships more often: 16 stable releases in the past year, against 0 for transfer.sh.

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

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

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