jcoffey-dev
639a415a4f
A 3-node PostgreSQL rehearsal found IMAP SEARCH FROM "noreply" matched 0-2 messages where RocksDB matched 23 of 930. The message indexer hands each address and display name of From/To/Cc/Bcc to the search store as keyword text (Language::None). The built-in index splits keyword text into lowercase runs of alphanumerics, so an address is found by its full form, its local part, its domain or a display-name word. The SQL backends didn't: - PostgreSQL's text parser keeps "[email protected]" as one email token (host names and URLs likewise), so neither "noreply" nor "amazon.com" ever matched it. Keyword text is now split the same way as the built-in index (SpaceTokenizer) before to_tsvector on insert and before plainto_tsquery/phraseto_tsquery on search, still under the 'simple' configuration, so the GIN index keeps serving the query. The sort columns keep the raw text. - MySQL's FULLTEXT parser already splits on punctuation, but InnoDB never indexes its stopwords ("com", "de", "www", ...) or words under innodb_ft_min_token_size (3), and a required +word it hasn't indexed matches no row. So "amazon.com", "[email protected]" or "jane doe" found nothing. Those words are now matched with a word-boundary REGEXP on the rows the indexed words select. In language text (bodies, subjects) they are dropped when other words remain, and only checked when nothing else is left, so "the invoice" no longer finds nothing either. Existing PostgreSQL search indexes hold the old single-token vectors and need a reindex (the reindexAccounts task) before address searches find old messages. MySQL needs none: only the query changed. store::search_tests gains test_address_search: five messages, 28 FROM/TO/CC/BCC searches by full address, local part, domain, domain labels, display name and hyphenated local part, plus a TEXT-style OR, with the same expected ids on every backend. It passes on RocksDB, SQLite, PostgreSQL and MySQL; on main it fails on PostgreSQL (From "noreply") and MySQL (From "[email protected]").
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. Project site: inbuxa.org. Documentation: docs.inbuxa.org.
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.
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, anddocs/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
cargo build --release -p inbuxa # the binary is target/release/inbuxa
docker build -t inbuxa . # or the container image
Settings are read from INBUXA_* environment variables. An existing Stalwart
install's STALWART_* variables aren't read: the server stops at startup and
names each one to rename.
New installs keep their data in /var/lib/inbuxa and logs in
/var/log/inbuxa. Existing installs keep the paths their configuration
already names, so none of their data moves.
License and credits
inbuxa is free software under the GNU Affero General Public License, version 3.
It is a fork of Stalwart, copyright © Stalwart Labs LLC, modified by Coffey Labs in 2026. Upstream's copyright notices are kept on every file they cover, and every upstream file this fork changed says so in its header, under the notice it came with. 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. A few of those files also carry code from other projects under MIT or BSD licenses, which stays under those licenses; THIRD-PARTY.md lists it with its notices. "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.