# Stalwart

Open-source mail and collaboration server written in Rust, serving SMTP, IMAP, JMAP, CalDAV, CardDAV and WebDAV.


Source: https://findsoftware.frbit.cloud/stalwart/
Last reviewed: 2026-11-03
Listed since: 2026-11-03

## Record

### Links

- home: https://stalw.art
- repository: https://github.com/stalwartlabs/stalwart
- docs: https://stalw.art/docs/install/
- pricing: https://stalw.art/pricing/
- x: https://twitter.com/stalwartlabs/
- mastodon: https://mastodon.social/@stalwartlabs
- discord: https://discord.gg/vhqRgdhguq
- forum: https://support.stalw.art
- subreddit: https://www.reddit.com/r/stalwartlabs

### Identity

- status: active
- maintainer: Stalwart Labs LLC
- maintainerType: company
- parent: unknown
- firstRelease: 2022
- hqCountry: unknown

### Kind

- category: email
- hosting: binary
- language: rust
- runtime: binary
- runtimeMin: unknown
- basedOn: unknown

### Content

- contentStore: not applicable
- databases: postgres, mysql, sqlite
- adminUi: yes
- headlessApi: not applicable
- templating: not applicable
- i18n: not applicable

### Rendering and deploy

- runsAs: always-on
- renderingModes: not applicable
- installMethod: docker

### License

- licenseModel: open-core
- license: AGPL-3.0, SELv2 (proprietary, commercial use)

### Releases

- currentMajor: 1
- latestReleaseDate: 2026-11-02

### Adoption

- githubStargazers: 15682
- packagistDownloads: not applicable
- npmWeeklyDownloads: not applicable
- contributors: 55
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: unknown
- dependentPackages: unknown

### Sources

- urls: https://stalw.art (read 2026-11-03)
- urls: https://stalw.art/docs/install/ (read 2026-11-03)
- urls: https://github.com/stalwartlabs/stalwart (read 2026-11-03)
- language: https://github.com/stalwartlabs/stalwart (read 2026-11-03)
- maintainer: https://github.com/stalwartlabs/stalwart/blob/main/README.md (read 2026-11-03)
- firstRelease: https://stalw.art/about/ (read 2026-11-03)
- category: https://stalw.art (read 2026-11-03)
- runtime: https://stalw.art/docs/install/ (read 2026-11-03)
- installMethod: https://stalw.art/docs/install/platform/docker/ (read 2026-11-03)
- installMethod: https://stalw.art/docs/install/platform/ (read 2026-11-03)
- installMethod: https://stalw.art/docs/cluster/orchestration/kubernetes/ (read 2026-11-03)
- installMethod: https://stalw.art/docs/install/platform/ (read 2026-11-03)
- runsAs: https://stalw.art/docs/install/platform/linux/ (read 2026-11-03)
- license: https://github.com/stalwartlabs/stalwart/blob/main/README.md (read 2026-11-03)
- license: https://github.com/stalwartlabs/stalwart/blob/main/README.md (read 2026-11-03)
- urls: https://stalw.art/pricing/ (read 2026-11-03)
- adminUi: https://stalw.art/docs/management/webui/ (read 2026-11-03)
- databases: https://github.com/stalwartlabs/stalwart/blob/main/README.md (read 2026-11-03)
- githubStargazers: https://github.com/stalwartlabs/stalwart (read 2026-11-03)
- contributors: https://github.com/stalwartlabs/stalwart (read 2026-11-03)
- currentMajor: https://github.com/stalwartlabs/stalwart/releases/tag/v1.0.2 (read 2026-11-03)
- latestReleaseDate: https://github.com/stalwartlabs/stalwart/releases/tag/v1.0.2 (read 2026-11-03)

## Notes

Stalwart is a mail and collaboration server written in Rust. It serves SMTP, IMAP, JMAP, CalDAV, CardDAV and WebDAV. A website can post its contact form straight to the server's [form endpoint](https://stalw.art/docs/http/form-submission/), which delivers each submission as an email. The server runs as a service on Linux, macOS, FreeBSD and Windows, or from its Docker image, and keeps its data in a configured store such as RocksDB, PostgreSQL or MySQL.

## Worth knowing

The community edition is licensed under AGPL-3.0. The Enterprise edition is sold per mailbox under a separate license, and the server reverts to the community edition when a subscription ends. A managed service is planned but not yet offered.

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Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attributes are recorded, never scored; absent means unknown.
Credit, in full: FindSoftware, CC BY 4.0