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docker-mailserver vs Stalwart

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

docker-mailserverStalwart
LanguageShellRust
LicenceMITNone detected
Stars19k15k
Latestv16.0.1v0.16.25
Last push2026-10-042026-10-05
Release cadenceabout 72 days between releasesabout 7 days between releases
Active contributors18 commit authors on the default branch in the last 90 days6 commit authors on the default branch in the last 90 days
FlagsnoneNo licence detected

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.

    PartialStalwartMail over JMAP, IMAP and SMTP, plus CalDAV and CardDAV, in one Rust server.