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ten31-database/docs/guides/email.md
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---
paths:
- backend/email_integration/**
- backend/digest_mailer.py
- backend/smtp_send.py
---
# Email capture & drafts (Gmail)
Read this before editing Gmail capture or draft creation.
## What it does
- `backend/email_integration/` captures Gmail via **domain-wide delegation** (`credentials.py`, `matcher.py`, `parser.py`, `db.py`, `sync.py`, `scheduler.py`, `routes.py`) and creates Tier-B in-thread drafts (`compose.py`). It has its own `migrations/`.
- Captured email becomes CRM activity through a **propose → approve** flow — nothing lands on a contact record until a human approves the proposal.
## Hard rule
- **Agents draft; humans send.** Never let an agent send email, post, or contact an LP autonomously. Tier-B `compose.py` only *creates* a Gmail draft for human review.
## Outbound mail — the daily digest (internal; exempt from "agents draft")
The CRM sends an internal **daily activity digest** to the fund's own admins. This is the
ONE automated send path, and it does **not** violate the hard rule above: that rule governs
outward **LP/prospect** contact. An internal ops email to the team's own inboxes is a
different category. **Never extend this path to send to LPs/prospects.**
- **Transport selector: `backend/digest_mailer.py`** (top-level, not in this package) —
`send_digest(conn, to_addrs, subject, body)` picks **Gmail-DWD (preferred) → SMTP (fallback)**.
DWD-impersonation sender = `CRM_DIGEST_SENDER` env, else the first active admin.
- **Gmail-DWD path: `gmail_send.py`** (this package) — reuses `credentials.py`'s
`DWDCredentialProvider` with the **`gmail.compose`** scope to call `users.messages.send`
(REST, mirrors `compose.py`; body is `{raw}` not the draft's `{message:{raw}}`). The
deployment's DWD grant includes `gmail.compose` (which authorizes send) but **not** the
narrow `gmail.send` — so request `gmail.compose`. Verified live 2026-06-15 (token mint +
a real `messages.send`).
- **SMTP fallback: `backend/smtp_send.py`** (top-level) — stdlib smtplib reading `SMTP_*` env,
populated on the box by the **Configure Digest SMTP** Start9 action (writes
`/data/secrets/smtp/*`; entrypoint exports `SMTP_*`). A dedicated per-package account,
independent of any StartOS system-wide SMTP.
- The admin **`POST /api/admin/digest/test-email`** restricts recipients to the active-admin
set (not an open relay), and logs send failures rather than echoing them (an auth error can
carry a token/credential).
### Phase B — the daily digest itself (built)
- **Content builder: `backend/digest_builder.py`** (top-level). `build_digest(conn, since_iso,
until_iso, chat_fn=None)` returns `{subject, body, has_activity, user_count, email_count,
investor_count}` and composes **two sections**:
- **By team member** — `collect_user_activity`: per registered user, both directions
(per-mailbox `eam.is_sent`), with **one Spark narrative paragraph** per user
(`ingest/llm.py` → Spark Control `/v1/chat/completions`), **never Claude** (the digest is
deliberately un-anonymized — real LP names + substance stay local). Deterministic
count-only fallback if Spark is unreachable (always-send must not fail).
- **By investor** — `collect_investor_activity`: re-pivots the same window across the whole
team, **deduped per email** (a reply to several teammates counts once), direction decided
at the **email level** (outbound if `from_email` is one of our mailboxes, else inbound).
Structured list, no extra Spark calls.
- Soft-delete filters: `email_account_messages.deleted_at IS NULL` + `users.is_active = 1`,
and the org/contact name joins drop soft-deleted rows (falling back to the matched address).
- **Control is DB-backed, set from the admin panel** — `digest_builder.load_digest_policy(conn)`
reads `app_settings.digest_policy` = `{enabled, send_hour}`. Precedence: **DB row wins**
(the Settings → Admin toggle + send-time dropdown), else `CRM_DIGEST_ENABLED`/
`CRM_DIGEST_SEND_HOUR` seed a first-boot default, else `{false, 18}`. `GET`/`PATCH
/api/admin/digest/policy` (admin-only) read/write it. **Not a StartOS action** — it's an
operational toggle, so it lives in-app where it's discoverable and takes effect live.
- **Scheduler: `backend/email_integration/digest_scheduler.py`** (co-located with the sync
scheduler). One daemon thread, **always started**; each cycle (60s) re-reads the DB policy
and sends once per local day at/after `send_hour` **only when `enabled`** — so toggling in
the panel takes effect with no restart. Content window = (last send, now]; cursor
(`digest_last_sent_at`) + once-per-day guard (`digest_last_sent_date`) live in `app_settings`,
so a missed day rolls into the next digest. Recipients = all active admins.
- **On-demand: `POST /api/admin/digest/send-now`** (admin-only) → `maybe_send_digest(force=True)`
builds the real last-24h digest and sends to the admin set regardless of the policy and
**without** touching the daily cursor (a preview never suppresses the scheduled send).
Surfaced as a "Send Digest Now" button in Settings → Admin, beside "Send Test Digest Email".
- **Decisions (locked):** 6 PM default send · always-send (empty days get a "no activity"
note) · per-user narrative + by-investor structured section · enable/time controlled in the
admin panel. Tests: `backend/test_digest_builder.py` (per-user + per-investor queries,
soft-delete, inbound dedup, two-section compose, fallback, policy resolver, scheduler guards
— stubbed LLM + transport).
## Email-activity panel (Communications tab) — admin-only
The **Communications** tab (frontend) is the admin-only search over captured Gmail. The
classic manual "Log Communication" form was retired (the Fundraising Grid context menu is
the manual-log path). Backed by **`GET /api/email/activity`** (`routes.py:_h_activity`,
`require_admin` server-side) → **`db.query_email_activity(conn, ...)`** (the pure, tested
query). Filters: `investor_id`, `account_id` (mailbox), `direction` (`inbound`/`outbound`),
`q` (free-text over subject/snippet/from). Non-obvious semantics to preserve:
- **Soft-delete lives on the per-mailbox sighting**, not the email: `emails` has no
`deleted_at`. An email is "live" iff it has a sighting with `email_account_messages.
deleted_at IS NULL` — the query gates on `EXISTS(... deleted_at IS NULL)`. (Investor
links are email-level and carry no `deleted_at`, so they need no separate filter.)
- **Direction is decided at the email level** — outbound if `from_email` is one of our
`email_accounts` addresses, else inbound — mirroring `digest_builder._own_addresses`.
- **Graveyard investors** are hidden from the filter *dropdown* (CRM-wide `graveyard = 0`),
but their captured email still shows in the list and stays findable by free-text search —
it's an audit surface, so history is never hidden, only the picker is.
Tests: `backend/email_integration/test_email_activity_panel.py`.
## Known gap
- Tier-B drafts currently reply to the **LP only**; reply-all is the next change (see AGENTS.md → Current state).
See also `docs/gmail-enablement-runbook.md`.