compare
docker-mailserver vs Mail-in-a-Box
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | docker-mailserver | Mail-in-a-Box |
|---|---|---|
| Language | Shell | Python |
| Licence | MIT | CC0-1.0 |
| Stars | 19k | 15k |
| Latest | v16.0.1 | v77 |
| Last push | 2026-10-04 | 2026-09-26 |
| Release cadence | about 72 days between releases | about 116 days between releases |
| Active contributors | 18 commit authors on the default branch in the last 90 days | 4 commit authors on the default branch in the last 90 days |
| Flags | none | none |
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.
PartialMail-in-a-BoxMail, contacts and calendars for your own domains on one Ubuntu server, without the office apps.
docker-mailserver
docker-mailserver
✓ signed The latest release, v16.0.1, carries a signature GitHub verified.
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Mail-in-a-Box
unsigned The latest release, v77, carries no signature GitHub could verify.
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