compare
Maddy vs Stalwart
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Maddy | Stalwart |
|---|---|---|
| Language | Go | Rust |
| Licence | GPL-3.0 | None detected |
| Stars | 6.1k | 15k |
| Latest | v0.9.6 | v0.16.25 |
| Last push | 2026-10-03 | 2026-10-05 |
| Release cadence | about 21 days between releases | about 7 days between releases |
| Active contributors | 2 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 →
PartialMaddySMTP, IMAP, DKIM, SPF and DMARC in one Go binary; mail only.
PartialStalwartMail over JMAP, IMAP and SMTP, plus CalDAV and CardDAV, in one Rust server.
Maddy
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…
Maddy
✓ signed The latest release, v0.9.6, 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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