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docker-mailserver vs mailcow

The same facts for both, read from GitHub every night, and the relation a person reviewed.

docker-mailservermailcow
LanguageShellJavaScript
LicenceMITGPL-3.0
Stars19k14k
Latestv16.0.12026-09a
Last push2026-10-042026-10-06
Release cadenceabout 72 days between releasesabout 18 days between releases
Active contributors18 commit authors on the default branch in the last 90 days11 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Google Workspace. Alternatives to Google Workspace →

    Partialdocker-mailserverSMTP and IMAP with spam and virus filtering, configured from files, without webmail.

    PartialmailcowMail, calendars and contacts with SOGo webmail; no office suite.