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c208543044 feat(engagement): deliverability — suppression, bounces and the verification gate
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ENGAGEMENT.md Phase 9, closing gap G16. Two mechanisms decide that somebody in a
rule's audience does not get the mail, and they sit at deliberately different
points in the pipeline.

`engagement_suppressions` is checked at DELIVERY: an outbox row can sit through a
rule's `delay_seconds` grace window and an address can bounce inside it, so the
only correct check is the one taken immediately before the transport call — which
is also what produces the `status='suppressed'` row with no transport call at all.

The Phase 1b verification gate is applied at ENQUEUE, through a new optional
`registerDeliveryChannel({ eligible })` that only `email` declares. Filtering the
shared audience would have silenced the wrong sink: a rule spanning email and
in-app must still put an item in an unverified user's inbox. The excluded counts
reach `summary.ineligible` and the admin reach preview, which until now reported
an audience size that was never the number of people who would be mailed.

`bounceClassify.js` is the only thing that may write a `bounce` row, and it is
deliberately NOT `mailer.PERMANENT_CODES`. That set answers "is retrying
pointless?" and contains EAUTH and 554 — an auth failure and a relay-wide policy
refusal, neither of which is a fact about the recipient. Reusing it would mean one
stale SMTP password suppressing every address the worker touched, silently. The
classifier reads the RFC 3463 enhanced status first, falls back to a phrase match
only past a veto list and only for 550/551/553, and does not suppress anything it
is unsure about.

Scope is engagement rules only: resets, invites, verification and the contact form
still attempt, matching the posture passwordReset.controller.js already stated.

Found on the live rig, against a real MariaDB and a real SMTP conversation: a hard
bounce was being recorded as `failed`, so the Send Log's "Bounced" filter — a
status `engagement_sends` has carried since §4.5 — matched nothing and always
would have. It is now its own outcome; the outbox row stays `failed`, since that
ENUM has no `bounced` and a bounced row is one that finished unsuccessfully.

`address_masked` is this phase's one addition to §4.5's DDL. A hash-only table
cannot be operated — an operator cannot tell three typos from a whole domain
refusing mail — and the domain survives while the local part is destroyed, so the
column can never be read back as an address book.

- schema: `engagement_suppressions` (+ `address_masked`, `created_by`)
- `GET/POST/DELETE /api/v1/admin/engagement/suppressions`, and Admin → Engagement
  → Suppressions, the only way out of the list
- `sendNotification` returns `smtp: { code, responseCode, response }`
- 26 new tests; swagger, routes manifest and guards regenerated

Docs: RunicGateway/docs#191.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-08-31 10:47:34 -05:00
065bec7ad8 feat(engagement): the email channel on the engine, and the Teams migration (engagement Phase 6)
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Email becomes a DeliveryChannel driven by rules, and the Team pipeline stops being
its own thing. `teamNotify.forumPost` now emits an event; a rule decides who is
mailed, through which template, and how often at most. One walk goes forum write
-> events.emit -> rule -> outbox -> worker -> email channel -> template -> SMTP.

Seven decisions settled by the org lead before any code:

  - email only moves; the push tickle and the Discord bridge stay direct calls
  - the EVENT carries its access-checked audience, and `members` resolves to it
  - the four Team rules are seeded DISABLED, with an admin banner and a note
  - team_notification_prefs stays, read by the engine as a scoped preference
  - the payload wins and a structural projection fills the gaps
  - the digest keeps computing at send time; only its state generalizes
  - an unsubscribe token turns off the channel it names, and nothing else

Three defects found while building it:

  - `email.button` never absolutized its href, while image and itemList both
    did. Every rule-driven CTA would have been a dead relative link, because a
    trigger's url variables are validated site-relative by construction.
  - Phase 4a enqueued digest-mode recipients for a drain that Phase 6 decided
    not to build. An outbox row snapshots the payload and so has none of the
    three properties the digest design exists for, including the security one.
  - the digest's send-log row carried no address_hash while the instant row
    beside it did, which would have made half the mail uncorrelatable in Phase 9.

Also: engagement_digest_state + a replay-safe backfill, engagement_outbox.scope_key,
a v2 unsubscribe token that still verifies v1 forever, and the canonical
/public/engagement/unsubscribe pair with the old /public/teams path kept
permanently — mail is not editable once sent.

Verified with 1464 server tests, 324 client tests, and a live rig (MariaDB +
Mailpit + a real Team) covering the instant mail, the digest, the generic
template, a pre-migration unsubscribe link and the backfill's replay-safety.

Docs: RunicGateway/docs#TBD

Co-Authored-By: Claude <noreply@anthropic.com>
2026-08-29 20:11:54 -05:00
2079aaf667 feat(engagement): the rules engine, cooldowns and outbox (engagement Phase 4a)
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Phase 4 of docs/website/ENGAGEMENT.md, split 4a/4b at the org lead's direction.
This is 4a: the engine, server only, with no HTTP surface at all. A fired trigger
now produces outbox rows and send-log entries; Admin - Engagement - Rules and the
segment composition UI are 4b.

Five tables (rules, audience segments, cooldowns, outbox, sends), the sweep
worker, audience resolution, condition evaluation, the grace window and its
cancellation, and the save-path validation 4b's form will call. engagementEmit's
Phase 2 log line becomes the engine call.

Two settled questions this phase was blocked on:

  Q2 (multi-instance) - neither SKIP LOCKED nor documented single-instance: the
  outbox claims each row with a compare-and-set into the 'sending' state the ENUM
  already carried. It makes the outbox safe for two instances, not the deployment.

  Q4 (admin surface) - its own top-level nav group, built in 4b.

Two defects in the plan's own section 4, both found by building it:

  The global UNIQUE(dedupe_key) was data loss. A dedupe key names the EVENT, and
  one event is one row per (rule, user, channel) - so a fifty-person audience
  would have had one row admitted and forty-nine silently ignored. Scoped.

  Section 4.1's single INSERT ... ON DUPLICATE KEY UPDATE cooldown claim always
  passes against this codebase's pool: the mariadb connector defaults
  foundRows:true, so a no-op update reports affectedRows 1 rather than 0. It is
  two statements now, with the interval guard in a WHERE clause.

The second defect is why there is a second test file. The stubbed suite was green
against the broken claim, because a stub can only agree with whoever wrote it;
engagementEngineSql.test.js runs the raw statements against a real MariaDB and
skips when there is none.

Verification: 43 new tests green in engagementEngine.test.js, 12 more against
MariaDB 11.8, and the whole path exercised end to end against a live database -
per-subject cooldowns, conditions, the CAS claim, the send log's honest failure
detail, and dormancy on uninstall. The three pre-existing Windows-only CRLF
failures in the generated-artifact tests are unchanged from clean edge.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-08-29 08:07:27 -05:00