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The schema conflicted as a binary file: taken from main and the one
edit here re-applied (sysComplianceGet after sysLegalHoldExport). The
import kept the permission count at 673, so the new id stays 673.
Retested on the merged tree in its own target directory: the
compliance and system suites pass. One earlier system run failed in
purge.rs (an imported blob not found) and didn't recur.
Personal-data catalog spec, §7 (settled 2026-09-28).
sysComplianceGet (673) sees the data inventory and compliance
overview: superusers and, for their tenant's slice, tenant
administrators, by default and through the one-time grants on servers
that already have their roles stored.
A Compliance Officer role at server level holds it with reading and
exporting the audit log, placing, widening, releasing and exporting
legal holds, seeing account locks, and reading accounts, lists,
domains, tenants and roles. It changes no server setting, creates or
deletes no account, and can't shorten audit retention.
A tenant's accounts can hold only roles of their own tenant (MT-3), so
the tenant role is one "Compliance Officer" role per tenant, without
holds (LH-13): made once for every tenant a server has, and whenever a
tenant is created. While nobody holds it, it is removed with its tenant
so it doesn't block the delete, and put back if the delete is refused
for another reason. Both roles carry a user's own permissions too,
since roles given to a person replace the default user role, which a
tenant's accounts can't hold anyway.
Every server makes these once, new or existing -- the built-in roles
are only made on a server with none -- and records each under P c, so a
role an administrator deletes stays deleted.
Tested: unit tests (neither role changes a setting beyond a user's
own; holds for the server's officer only; per-place records); a new
compliance system test (one server-level role; an officer reads the
audit log, places and releases a hold, and is refused a setting, an
account and audit retention; a tenant gets its role, whose holder reads
the tenant's audit log and no holds; a tenant with an unused role is
deleted and the role goes with it); the system, audit, legal hold,
account lock and SCIM suites; fork checks. The directory suite needs
its LDAP container and wasn't run here.
Eight conflicted files resolved, plus the lock file and the schema:
- crates/services/src/task_manager/spam_classifier.rs: upstream's rules
update now replaces existing rules, DNSBL servers, lookups and file
extensions, keeping only whether each is on. Taken, with one difference:
an object an admin edited is kept as it is. Every object an update writes
is fingerprinted (content without `enable`, SHA-256, stored under
SUBSPACE_INBUXA "Sf"), and only one that still matches is replaced.
Scores are never replaced, as upstream has it. The AU-1.10 summary record
now names what was added, replaced and kept, and the bundled rules are
marked applied only when the update fully succeeded, so a failure runs
again on the next start. The marker becomes "3.0.2+2", which runs the
update once on upgrade to fingerprint every rule still as bundled.
- crates/common/src/network/autoconfig/autodiscover.rs: upstream's rewrite
(implicit TLS first, labeled SSL), with the per-protocol switches (LP-7,
LP-14a) passed in as a filter.
- crates/store/src/backend/mysql/{search,write}.rs: upstream's chunked
deletes (no unbounded first DELETE, stop on a short chunk, halve the
chunk on the new chunk-too-large errors) inside the fork's query timeout.
- crates/smtp/src/lib.rs: the fork's queue spawn kept. It already fixed the
stall upstream fixes here (a node without outboundMta stops accepting
mail at about 1024 queued messages), and follows role changes live.
- crates/jmap/src/registry/mapping/bootstrap.rs: the log path stays
/var/log/inbuxa/; upstream's PowerDNS mapping taken.
- crates/main/Cargo.toml: the AGPL-only license kept, version 0.16.24.
- tests/src/jmap/principal/get.rs: the fork's capabilities kept.
- resources/schema/schema.json.gz: merged as JSON; upstream relabeled the
vendor Sieve extensions "(Stalwart)", kept as "(vnd.inbuxa)".
- Cargo.lock: upstream's, with the fork's crates added by Cargo.
Also:
- tests/src/smtp/inbound/spam_rules_kept.rs: an edited rule survives an
update, an unedited one is updated, rules from before fingerprints are
handled, and the audit summary says so. Upstream's own spam_rules test
passes unchanged.
- tests/src/smtp/reporting/reschedule.rs moves to port 19058; upstream's
new spam_rules test took 19057.
- tools/fork/renames.py renames the "(Stalwart)" labels and the default
log path, so neither conflicts again.
- tools/fork/notice-check.py compares against the newest snapshot in the
checked-out history instead of the upstream branch head, so moving the
branch no longer fails other open pull requests.
- tests/src/directory/issuer.rs (since v0.16.23) stays out, and is on the
build check's known list: it tests issuer-based directory routing, which
the fork doesn't have (DIR-2).
- Strip report: docs/fork/strip-reports/v0.16.24.{md,json}.
Upstream commit: af37a234981722493b74623a983581691d2b70b6
Enterprise-only files removed or emptied: 63
Enterprise-only snippets removed: 118 in 50 files
Dangling module declarations removed: 5
Edits turning enterprise off: 25
Third-party code: 14 files, 0 not in THIRD-PARTY.md
Renamed identifiers: 62 in 18 files
Verification: clean
The same Enterprise footprint as v0.16.23. The build check fails only on
tests/src/directory/issuer.rs, unchanged since v0.16.23: it calls a helper
from upstream's Enterprise-only OIDC test, and tests issuer-based directory
routing, an Enterprise feature. main has never carried it.
A new method, inbuxa:Explanation/set, asks the node's local model for a
short plain-words reading of one thing an administrator is looking at:
a failed recipient in the queue, a Classify verdict, a log line or trace
event, or one setting with its saved value. The server builds the prompt
itself from stored data and the registry schema, never from text the
console sends, and grounds SMTP replies in RFC 3463 and RFC 5321.
What the model is never shown: secrets (including ones nested inside a
setting, like an AI model's HTTP auth), raw protocol events, and the
contents of any other event. A tag name that doesn't have a tag's shape is
refused before a model is asked.
Calls share the AI gate with spam classification, but mail always keeps
its slot, and Explain has its own hourly count per account and its own
on/off switch in inbuxa:AiLimits. The permission is sysAiExplain,
superuser only; tenant administrators can't use it. The session carries
an aiExplain flag so a console knows when to offer the button.
An install whose roles were stored before the permission existed gets it
added once, at start-up, to the roles that are administrators' alone,
not the User role their defaults share with every account. An operator
who removes it later isn't overruled.
Tests: unit tests in inbuxa-features and jmap, and ai_explain_tests
(run with --ignored) covering the acceptance tests and the upgrade.
Setting deliverAt on an internal DMARC or TLS report wrote the new task
queue row with the report's object type (0x21, 0x6e) instead of the task
type (7, 8), and left the task row at its old due. The task manager's scan
failed on that row with store.data-corruption ("Failed to iterate over task
queue"), and because the error ended the whole scan, every task due after
the row stopped running on every node.
- reschedule_ops writes the new queue row through schedule_task_with_id, so
it carries the task type and the task row gets the new due. It removes
the row the task is actually queued under (the task's due, which differs
from deliverAt once the task has been retried) and any row an earlier
reschedule left at deliverAt.
- x:DmarcInternalReport/set and x:TlsInternalReport/set lock the report's
task while they move it, as x:Task/set does, refuse while the report is
being sent, release the locks however the request ends, and wake the task
manager.
- The task manager logs a queue row it can't read (id, due, key, value) and
skips it instead of ending the scan. It then repairs the row from its task:
the row is rewritten with the task's type, and a row with no task behind
it is removed. A row holding a report's object type for a report task is
what the old reschedule wrote: the task is moved to that row's time, as
the reschedule intended, and its old queue row is removed. Stores that
already hold such a row recover on their own once it comes due.
- x:Task/query with a type filter skips an unreadable row instead of
failing.
Test: smtp::reporting::reschedule (RocksDB and PostgreSQL). It fails on
main: x:Task/get shows the old due, and with that check removed, neither
report nor a later task ever runs.
A 3-node rehearsal found that saving an MtaDeliverySchedule left it
unknown to the queue ("Queue strategy not found") until someone ran
x:Action ReloadSettings; only Directory and Authentication writes
reloaded (DIR-17). The admin UI has to remember a separate reload after
every save, and a script or API client that doesn't gets a server
running stale settings.
x:<Object>/set now reloads the running settings when it created,
updated or destroyed an object they are built from, and broadcasts the
same RegistryChange::Reload over the coordinator as ReloadSettings, so
every node applies it:
- Settings objects (MTA, spam filter, listeners, tracers, Sieve system
scripts, cluster roles, directories, ...: the object types the core,
telemetry, listener and directory builders read) get a full reload.
- Certificates, lookup stores and blocked/allowed IPs get their own
targeted reloads.
- Accounts, domains, roles and other data read as needed, stores (they
take a restart) and applications (their own reload action) get none.
Full reloads are coalesced: a write waits for a reload that started
after it was stored and joins one if it can, so a burst of writes, or
a request with many objects, costs one or two reloads, not one each.
The write itself is never undone. When the reload is refused (build
errors in objects that were working, the rule from the previous
commit), the set response says so in a new x:settingsReload field,
{"applied": false, "description": "Saved, but the running settings
were not reloaded. <object>: <error>"}; {"applied": true} otherwise.
The field is absent when the write needs no reload. The description
helper is shared with ReloadSettings' refusal.
Each reload sends the queue a ReloadSettings event, so the SMTP test
harness's read_event, try_read_event and assert_no_events now pass over
those; expect_reload_settings still waits for one.
system::auto_reload::settings_reload_tests (new): an MtaVirtualQueue
and an MtaDeliverySchedule created over JMAP are in the running
settings with no ReloadSettings, and gone once destroyed; eight
concurrent creates all land; a write whose reload fails is stored and
reported applied: false with the error; a domain write carries no
x:settingsReload. On main the new schedule is missing. The cluster
broadcast test (three nodes, PostgreSQL + NATS) now checks that every
node has a schedule created on node 0 without a reload.
A 3-node rehearsal found every settings reload refused, cluster-wide,
because one node couldn't resolve the Pyzor server:
- PyzorConfig::parse resolved the host while building the settings and
made a failed lookup a build error. It now keeps the host and port and
resolves when a message is checked (an IP address is used as is, a
name is reused for five minutes, the lookup counts against the Pyzor
timeout). A failure there is a Pyzor error for that message.
- A milter's hostname was resolved the same way, with a blocking
to_socket_addrs in async code. An IP address is kept; a name is now
resolved on each connection.
Other build-time I/O is already non-fatal: directories that can't
connect become unavailable with a warning (DIR-21), and the AI model
locality check only warns.
reload_registry swapped the core only when the whole build was free of
errors, while boot runs with whatever built. One failing object thus
refused every later reload, and the running settings went stale. Now a
reload is refused only for errors in objects that built when the
running settings were built (at boot or by the last applied reload):
applying it would lose those. Objects that already failed then are
missing from the running settings anyway, as at boot, so their errors
are logged and returned as known_errors but don't hold the reload back.
Refusing on new errors keeps a bad edit from taking a working object
out of service; the admin gets the error instead.
ReloadSettings now says "Settings were not reloaded." and names the
object and its error ("Tracer with id ...: Only one console tracer is
allowed"), with a count of any further errors. A refused reload after a
directory change logs its errors too.
system::reload::reload_tests (new): with Pyzor enabled on an
unresolvable host, ReloadSettings succeeds (on main it fails with
"Invalid address: failed to lookup address information"); an IP host
needs no lookup; a new build error refuses the reload, names the object
and leaves the running settings unchanged; the same error, once known
from the running settings' build, no longer blocks; once fixed, a new
error there blocks again. smtp::inbound::milter's session test now
names its milter "localhost", so the connect-time lookup is exercised.
Everything clients, users and operators meet now carries the fork's name,
with no aliases (SPEC.md §2.4, changed here from "protocol identifiers
stay"):
- JMAP: upstream's registry capability is urn:inbuxa:jmap:registry, beside
the fork's own urn:inbuxa:jmap.
- WebDAV lock and sync tokens are urn:inbuxa:dav*; clients resync once.
- Sieve: vnd.inbuxa.while and vnd.inbuxa.expressions. sieve-rs spells these
into its compiler, so it's vendored (vendor/sieve-rs, 0.7.3) and patched in;
a unit test fails if Cargo.lock ever moves past the vendored copy. The
trusted runtime now names itself too, rather than answering sieve-rs's
default.
- The web interface's OAuth client is inbuxa-webui. On every start the old
stalwart-webui client is removed and any application naming it is moved
over.
- The spam filter's blobs are INBUXA_SPAM_*; every start moves any left
under the old keys, so a trained model survives.
- SQL stores and log files default to inbuxa, in the code and in the
schema served to the admin (checksum regenerated).
- Settings are INBUXA_* only. A STALWART_* variable that's set where its
INBUXA_* one isn't stops the server at startup, naming it.
- The version-upgrade messages link docs.inbuxa.org's migration page, and
the OpenAPI description, smtp crate metadata and web-push test fixtures
lose the name.
Kept on purpose, allowlisted with reasons: the OAuth key-derivation
contexts (renaming them would end every session and invalidate every
sealed client id) and the hashed application prefix.
Also fixes a latent start-up failure: ensure_client updated an existing
first-party client with a revision of 0, which the registry's assertion
never matches, so adding a redirect URI or changing the webmail secret
failed start-up. And the principal session test now expects
legacyProtocols (C-1, added 2026-09-21), which it had missed.
Tested: the server builds without warnings; common's 106 unit tests,
including the vendoring check; a new integration test for the two
start-up migrations; and the webdav, jmap, imap and SMTP Sieve suites.
tools/fork/name-check.py reads every string literal in crates/ (comments
and test directories skipped) and fails on any that carries the upstream
name without an entry in name-allowlist.txt. An upstream merge can bring
such strings in without a conflict, so it runs on every push and PR.
The first run found three the earlier sweeps missed, fixed here: the SMTP
HELP reply pointed at upstream's website (now brand_url!), the event
collector thread was named after upstream, and the FreeBSD default data
path still said /var/db/stalwart/ where Linux already had /var/lib/inbuxa/.
Two operator-visible defaults are allowlisted as open, pending a decision:
the log file prefix and the SQL stores' default database and user.
Deleting a tenant now also removes its stored inbuxa:TenantProtocolPolicy,
in the same place the registry's other per-type clean-ups run. Without it
the row outlived the tenant, and a tenant that later came to have the same
id would have started with legacy protocols off.
The e2e deletes a tenant whose switch a server administrator had turned
off, and would check that a new tenant with the same id starts with them
on. On this build the registry hands out a fresh id instead ("d" after
"c"), so the reuse -- and with it the removal -- isn't observable over
JMAP; the test says so rather than passing silently. The risk it guards
was therefore smaller than feared, and the change is mostly about not
leaving an orphaned row behind. All 72 checks pass.
While legacy mail protocols are off, x:NetworkListener/set refuses to
create a listener the switch would close, and refuses an update that would
turn an existing one into such a listener -- otherwise changing a
listener's protocol would walk straight past the check. The refusal is
invalidProperties on protocol (or on bind, for a submission listener once
SMTP is unlocked, since its port is what makes it one), and its description
names inbuxa:ProtocolPolicy and says to turn legacy protocols back on first.
The rule is the switch's own, listeners::closes, so what can't be added is
exactly what the switch would close: locked protocols (SMTP, LMTP, HTTP)
and the inbound port are never refused. Putting saved listeners back
(LP-5) writes through the registry, not /set, so it is unaffected.
The e2e changes with it. LP-6's check that an IMAP listener "created by
mistake" refuses sign-in can't be set up any more -- LP-4 is what stops
that listener existing -- so that step now proves test 4 instead: creating
an IMAP listener is refused, naming the policy; an SMTP listener can still
be created; and updating it to IMAP is refused. LP-6 stays proven live over
submission, and its IMAP wording by unit tests. All checks pass.
The AGPL asks a modified version to carry prominent notices saying it was
modified, and giving a date. Publishing the source is the conveyance that
asks for it, so it wants doing before the repository is public rather than
at the release.
Every upstream file the fork changed now says so in its header, beneath the
notice it came with: 164 files, found by diffing against the upstream
snapshot branch rather than by guessing, so the list is what actually
differs. Files the fork wrote itself already carry their own copyright and
need nothing. Upstream's notices are untouched, which its licence requires
and which was already true.
The README says the same thing in prose, since the obligation is on the
work as a whole and not only its Rust files.
Builds unchanged: the server and the test binary both compile.
Every one of the 14 was `#[cfg(not(feature = "enterprise"))]` on the arm the
fork always compiles: the Enterprise arms went with the import, and nothing
turns the feature on. Removing the attribute leaves the same code, now
unconditional, in 11 files.
Two of them looked like behavior worth checking before touching: the
`validate_tenant_quota` stub that always passes, and the refusal to cancel a
pending DestroyAccount task. The stub is vestigial — the rebuilt
multi-tenancy enforces quotas in `crates/features/src/tenancy/quota.rs` for
those objects and more — and the refusal is undelete's open question, which
this change leaves exactly as it was.
The binary builds with no new warnings, and `system_tests` and `jmap_tests`,
which cover the touched registry, task-manager and auth paths, both pass.
The feature definitions stay in the manifests, inert: taking them out would
widen every sync's diff for nothing.
A write to x:Directory or Authentication reloads the directories at once,
here and across the cluster. A directory that fails to open is logged as
a warning against its id and becomes unavailable; before, it was a build
error, and any build error stopped every later reload from applying.
per_domain_directory_tests covers acceptance tests 1, 3, 4, 6, 7, 9, 11,
15 and 19 over SQL directories on SQLite files: each domain against its
own directory and the default, no fallback to internal passwords, a
directory answering for another directory's domain, aliases and groups
dropped, recipients through the directory and a 4xx while it's down, app
passwords while it's down, password changes refused and then allowed
after a move to the internal directory, linked directories, tenant
foreign keys, and changes taking effect without a reload.
Every minute the node that calculates metrics evaluates each enabled
x:Alert, read from the registry, with metric('name') or the underscore
name. An alert fires when its condition turns true: it emits
telemetry.alert-event with the rendered message, and queues one email per
recipient through the outbound queue, placeholders filled and
Auto-Submitted set. An alert naming an unknown metric is refused on save.
The shared alerts suite runs; every telemetry suite is un-gated.
GET /api/token/tracing and /api/token/metrics issue a 60-second token for
holders of liveTracing or liveMetrics outside a tenant. /api/live/tracing
streams event: trace frames of x:TraceEvents, never raw I/O, filtered by
text or by key, with a ping while idle; /api/live/metrics streams event:
metrics frames of current totals every interval. At most eight streams run
per node, each for 30 minutes. Upstream's documented paths are aliases.
A lossy collector subscriber keeps each inbound SMTP session that reached
MAIL FROM and each delivery attempt, info level and above and never raw
I/O, at most 1,000 events with strings cut at 4 KiB, and writes it when
the span closes as an x:Trace under the telemetry key class, scheduling
its indexing. The index task builds a document of event types, queue ids
and keywords when indexTelemetry is on. x:Trace/get derives timestamp,
from, to and size; /query filters by opening event, text, queueId and
time; /set destroys only. The data purge honours holdTracesFor. The shared
tracing and webhook suites run.
Every node writes a sample per metric on metricsCollectionInterval:
counters as the increase since its last sample, gauges always, histograms
as totals when changed. Samples are x:Metric in the registry's encoding
under the telemetry key class, ids time-ordered. x:Metric/get and /query
read them with metric and timestamp filters and full paging, hide what's
past holdMetricsFor, and the data purge deletes it. The is_enterprise
split is gone, so every gauge and histogram is collected and exported, and
queue.count is set from the queue itself. The shared metrics suite runs.
The classifier sends only the subject and text, between unforgeable markers
after the operator's prompt, to an OpenAI-compatible endpoint the operator
configured; nothing is preset. Its answer maps to an LLM_ tag whose score is
clamped (+5.0, -1.0 by default) and can never discard or reject on its own;
X-Spam-LLM is sanitized, encoded and folded, and a planted one is removed.
Failures, timeouts past the ceiling, a full slot or a paused model leave
mail flowing untagged. llm_prompt answers trusted scripts, and accounts
holding interactAi within an hourly limit. Redirects aren't followed and no
content or secret is logged. The limits live in inbuxa:AiLimits.
Acceptance tests 1 and 3 to 21; test 2 as the re-enabled shared llm case,
whose setup no longer waits on a rules file from a developer's own path;
test 22 written as the ignored ai_compat.
Logos resolve domain, then tenant, then server-wide, then the built-in, with
subdomains finding their domain. GET /logo serves a data-URL image, redirects
to a URL logo without fetching it, sandboxes SVG, and answers 404 when no
custom logo applies. Emails embed the first PNG, JPEG or GIF logo. Logo and
template writes are checked; stored templates are read at send time, always
escaped, and fall back to the built-in with a build warning when they don't
parse. The RSVP page is served byte for byte with a CSP and no-referrer. The
sign-in and RSVP pages load the logo through an image element. MT-22's
session logo follows the chain to the server-wide logo.
Acceptance tests 1 to 17; test 18 written as the ignored branding_compat.
With archiveDeletedAccountsFor set, a destroyed account's record is kept in
the fork subspace with its id, its DestroyAccount task is due at the end of
the period, and its shares are suspended both ways. Its addresses can't be
taken by new accounts, aliases, lists or masks. inbuxa:DeletedAccount/get
lists kept accounts to server and tenant administrators; /set restores one
with a new password (same id, task cancelled, shares reinstated) or destroys
it now. The destroy task also clears undelete's own records.
Acceptance test 14; test 16 written as the ignored undelete_compat.
Every way of deleting mail for good (JMAP, IMAP expunge, POP3, Trash
emptying, mailbox removal) notes the message's mailboxes and keywords while
archiving is on, fixing its deadline then; when its data is finally removed
it becomes an x:ArchivedItem record, written as upstream writes them, with
its copy held until the deadline. Retention is read at deletion time, so a
change applies at once. Restore puts a message back in the mailboxes it was
in (Trash only if that was all), with its keywords, and removes the record;
over quota it stays archived. x:ArchivedItem/get returns status and
accountId; query filters on type, archivedAt and text; set requests a
restore once or destroys; /changes is a fork addition. Expired items go in
the data purge. The shared account-access rule moves to jmap::inbuxa::access.
system_tests now calls undelete::test, and the archiving gate is gone.
The fork's per-account change log answers /changes, collapsing a mask
created and destroyed in the window. /changes on a registry type needs that
type's get permission.
x:MaskedEmail is no longer refused as unbuilt. Creates generate the address
on an allowed domain and check the prefix, maxMaskedAddresses and the create
rate; updates keep server-set fields; enabled reads and writes map to the
shared state; query filters on enabled, forDomain and text; a tenant
administrator reaches its tenant's accounts' masks.
Inside a tenant, server-level object types are forbidden and x:Tenant reads
return only the caller's own tenant, which it can't change. Registry writes
refuse links across tenant boundaries in both directions, give a new
principal its domain's tenant, move a domain's principals and DKIM keys with
it into a tenant, refuse moves out of a tenant while its people remain, and
refuse creates past a tenant's count limits with overQuota and
limit.tenant-quota.
- The recovery administrator (INBUXA_RECOVERY_ADMIN, or STALWART_RECOVERY_ADMIN)
is honored only in bootstrap and recovery mode. On a configured server it's
ignored with a startup warning. Before, it was a standing full-admin login
for as long as the variable stayed set.
- The Enterprise upsell error is replaced by "This feature isn't available in
INBUXA yet" for the features still to be rebuilt.
- Workspace warnings: 25 to 0. cargo fix removed the unused imports. The
seven places where Enterprise code used to plug in keep their parameters,
each with an inbuxa: comment naming the rebuild that uses it again. The
antispam test's mock-server imports are back behind pending-rebuild.
- crates/main: package and [[bin]] renamed to inbuxa; homepage inbuxa.org;
license AGPL-3.0-only (upstream is dual; the fork takes the AGPL).
- types::branding::env_var reads INBUXA_<name>, falling back to
STALWART_<name> with a warning, for all nine server settings.
STALWART_APP_ and STALWART_SPAM_* storage keys are unchanged.
- New-install default paths /var/lib/inbuxa and /var/log/inbuxa.
- Dockerfiles, systemd unit, launchd plist and AppArmor profile renamed.
- Upstream's .github moved to .github-upstream so none of it runs.
- install.sh stubbed: upstream's would install Stalwart.
- Two missed brand strings: the SMTP Received header and the utils user agent.
Upstream commit: 474dd0229cb20cf513036619781ed97bd8073c3f
Enterprise-only files removed or emptied: 63
Enterprise-only snippets removed: 117 in 50 files
Dangling module declarations removed: 5
Cargo edits turning enterprise off: 14
Verification: clean
Enterprise feature gates left for rebuilt features: 19 in 18 files
Produced by tools/fork/strip.py. The full report is in docs/fork/strip-reports/ on main.
jcoffey-dev