A complete mail and collaboration server, every feature included, under the AGPL
---
**INBUXA** is a mail and collaboration server: JMAP, IMAP, POP3, SMTP,
CalDAV, CardDAV and WebDAV, in one Rust binary, with ihasmail as its web front
end. It is a fork of [Stalwart](https://github.com/stalwartlabs/stalwart).
Stalwart ships some features only in a paid Enterprise Edition: multi-tenancy,
masked email, undelete and others. INBUXA ships everything to everybody under
the AGPL-3.0, rebuilding those features independently and without using any
of Stalwart's Enterprise code.
> **Status: in development, not released.** The fork builds, passes its unit
> tests, and runs as a working mail server. The Enterprise features are being
> specified and haven't been rebuilt yet. Don't run it in production.
## What's different from Stalwart
- **Every feature, one edition.** No license key, no edition checks, no
upsell. See `docs/spec/SPEC.md` §4 for the features being rebuilt, and
`docs/spec/features/` for each one's specification.
- **Webmail and administration by ihasmail,** as a separate service that can
run beside the server or elsewhere. Stalwart's own web interface is removed,
so there's no web front end on the mail host.
- **Clean-room rebuilds.** Enterprise-only code is stripped from every
upstream release before it's imported. The rebuilt features are written
from specifications that use only public sources (`docs/spec/SPEC.md` §3).
## How the fork is kept
Upstream releases arrive as stripped snapshots, never with upstream's git
history, which contains Enterprise code. `tools/fork/strip.py` builds each
snapshot on top of upstream's own `ossify.py`, then verifies it independently.
The report for every import is in `docs/fork/strip-reports/`. See
`docs/spec/SPEC.md` §2.
## Building
```bash
cargo build --release -p stalwart
```
The binary and package are still named `stalwart` while the packaging is
reworked.
## License and credits
INBUXA is free software under the [GNU Affero General Public License,
version 3](./LICENSES/AGPL-3.0-only.txt).
It is a fork of Stalwart, copyright © Stalwart Labs LLC. Upstream's
copyright notices are kept on every file they cover. Stalwart's files are
dual-licensed AGPL-3.0-only or Stalwart's Enterprise License, and INBUXA takes
them under the AGPL-3.0 only. "Stalwart" is Stalwart Labs' name. INBUXA isn't
affiliated with or endorsed by Stalwart Labs.
The INBUXA mark reuses ihasmail's cat-and-envelope artwork.