compare
Mailu vs Stalwart
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Mailu | Stalwart |
|---|---|---|
| Language | Python | Rust |
| Licence | Other | None detected |
| Stars | 7.5k | 15k |
| Latest | 2024.06.61 | v0.16.25 |
| Last push | 2026-10-06 | 2026-10-05 |
| Release cadence | about 11 days between releases | about 7 days between releases |
| Active contributors | 7 commit authors on the default branch in the last 90 days | 6 commit authors on the default branch in the last 90 days |
| Flags | none | No licence detected |
How they relate
Both replace Google Workspace. Alternatives to Google Workspace →
PartialMailuMail with webmail, spam filtering and an admin UI.
PartialStalwartMail over JMAP, IMAP and SMTP, plus CalDAV and CardDAV, in one Rust server.
Mailu
- 2024.06.612026-09-30---------
- 2024.06.602026-09-28---------
- 2024.06.592026-09-23---------
- 2024.06.582026-08-12---------
- 2024.06.572026-07-26---------
Stalwart
- v0.16.252026-10-05If you are upgrading from v0.16.x, replace the binary (or run docker pull). If you are upgrading from v0.15.x and below…
- v0.16.242026-09-27If you are upgrading from v0.16.x, replace the binary (or run docker pull). If you are upgrading from v0.15.x and below…
- v0.16.232026-09-21If you are upgrading from v0.16.x, replace the binary (or run docker pull). If you are upgrading from v0.15.x and below…
- v0.16.222026-09-13If you are upgrading from v0.16.x, replace the binary (or run docker pull). If you are upgrading from v0.15.x and below…
- v0.16.212026-09-06If you are upgrading from v0.16.x, replace the binary (or run docker pull). If you are upgrading from v0.15.x and below…
Mailu
✓ signed The latest release, 2024.06.61, carries a signature GitHub verified.
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Stalwart
unsigned The latest release, v0.16.25, carries no signature GitHub could verify.
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