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ai_ml_operations
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# Messaging
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Campaign compose/send, SMTP2GO email + SMS, PCM Integrations postcards, and delivery webhooks.
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## SMTP2GO webhook setup
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Campaign report page polls provider events every 10s. Create **one** SMTP2GO
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webhook (email + SMS share a URL — paid plans cap at 10 webhooks).
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### Auth (`SMTP2GO_WEBHOOK_SECRET`)
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1. Set `SMTP2GO_WEBHOOK_SECRET` in `.env` / prod env (long random string).
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2. In SMTP2GO, set **Authorization header** to **Bearer** and paste that same secret
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(do not leave it as “None”).
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3. Fallback: `?token=<SMTP2GO_WEBHOOK_SECRET>` on the webhook URL also works.
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### Unified email + SMS webhook
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| Field | Value |
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|-------|--------|
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| URL | `https://mkdrealtor.com/portal/messaging/webhooks/smtp2go/` |
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| Authorization header | **Bearer** + `SMTP2GO_WEBHOOK_SECRET` |
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| Output type | JSON |
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| Users | email SMTP user(s) **and** the SMS API key (`SMTP2GO_SMS_API_KEY`) |
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| Email events | processed, bounced, rejected, spam, delivered, unsub/resub, opened, clicked |
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| Email headers | `X-Monica-Message-Id` |
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| SMS events | Submitted, Sending, Delivered, Failed, Rejected (and Opt-out if shown) |
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The handler classifies each POST from the payload (`sms_*` / `destination_number`
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→ SMS; `rcpt` / `email_id` / `X-Monica-Message-Id` → email; inbound `text=STOP`
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without `event` → SMS opt-out).
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`X-Monica-Message-Id` is set on every campaign email send and is required so email
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webhook events match the correct recipient row. Invalid / missing header values
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no longer 500 the endpoint (SMTP2GO “Test this webhook” often sends a sample
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non-UUID).
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SMS correlation uses `message_id` (SMS id), then `destination_number` phone
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fallback. Do **not** treat webhook `id` as the SMS id.
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**Opt-out:** SMTP2GO auto-handles replies `STOP` / `UNSUB` / `UNSUBSCRIBE`.
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This endpoint also accepts inbound POSTs without an `event` field
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(`text=STOP`, `from=…`) and opts the contact out of SMS. Later sends to
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opted-out numbers are typically `sms_rejected`.
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Beta / other hosts: swap the hostname, keep the path.
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Legacy aliases (same handler): `/portal/messaging/webhooks/email/` and
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`/portal/messaging/webhooks/sms/` — prefer `/smtp2go/` for new configs.
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## PCM Integrations (postcards)
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Default postcard provider. Designer embeds PCM’s editor; orders use DirectMail API v3.
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### Env
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| Var | Purpose |
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|-----|---------|
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| `PCM_API_KEY` | API key from PCM portal (My Account → API Keys) |
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| `PCM_API_SECRET` | Matching API secret; used with key on `POST /auth/login` |
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| `PCM_CHILD_REF_NBR` | Optional child-app ref for multi-account |
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| `PCM_WEBHOOK_SECRETS` | Comma-separated signature secrets (one per PCM subscription) |
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| `PCM_WEBHOOK_SECRET` | Optional single-secret alias (merged into the list above) |
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| `PCM_RETURN_ADDRESS` | JSON return address on orders |
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| `POSTCARD_PROVIDER` | `pcm` (default) |
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Auth flow: `POST /auth/login` with `{apiKey, apiSecret}` → short-lived
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`token` used as `Authorization: Bearer …` on design/order calls
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([PCM Logging In](https://docs.pcmintegrations.com/docs/directmail-api/ffef03a112bb0-logging-in)).
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### Designer
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Portal → **Postcard design**: create/list designs via API, edit in iframe
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(`POST /design/custom`, `GET /design/{id}/edit?mode=embed`). Save as a
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`MessageTemplate` (stores `design_id`) then pick it when composing a postcard campaign.
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### Postcard webhook
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PCM allows **one event per subscription**, and each subscription gets its own
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**signature secret** (copy-only in the UI). Create one subscription per status
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you care about; point them all at the same URL and paste every secret into env.
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| Field | Value |
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|-------|--------|
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| URL | `https://mkdrealtor.com/portal/messaging/webhooks/postcard/` |
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| Events | One subscription each: Pending, Processing, Processed, Delivered, Undeliverable, Canceled (skip QrCodeScan unless needed) |
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| Environments | Sandbox and/or Production as needed |
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| Secrets | Copy each subscription signature → `PCM_WEBHOOK_SECRETS=sec1,sec2,…` |
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We accept Bearer, `?token=`, or common signature headers (raw secret or
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HMAC-SHA256 of body) matching **any** listed secret.
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Correlation: we send `extRefNbr=<Message.uuid>` on each recipient; webhooks should
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echo that (or `orderID`, matched to `Message.provider_message_id`).
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### Campaign completion email
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When a campaign reaches **completed** (email, SMS, or postcard), one summary email
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goes to `campaign.created_by.email`, else `CONTACT_EMAIL`. Guarded by
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`Campaign.notify_sent_at` so it only sends once.
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### Local development
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SMTP2GO / PCM cannot reach `localhost`. Use a tunnel (Cloudflare Tunnel / ngrok) to `:8000`,
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or test webhooks against beta/prod.
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For real SMTP delivery locally (not console logs):
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```bash
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# in .env
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EMAIL_BACKEND=django.core.mail.backends.smtp.EmailBackend
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EMAIL_HOST_USER=…
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EMAIL_HOST_PASSWORD=…
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SMTP2GO_WEBHOOK_SECRET=…
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SMTP2GO_SMS_API_KEY=… # SMS sends only
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PCM_API_KEY=…
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PCM_API_SECRET=…
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PCM_WEBHOOK_SECRETS=sec1,sec2,…
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PCM_RETURN_ADDRESS={…}
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```
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### Endpoints (app)
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| Path | Purpose |
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|------|---------|
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| `POST /portal/messaging/webhooks/smtp2go/` | Unified SMTP2GO email + SMS (+ inbound STOP) |
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| `POST /portal/messaging/webhooks/email/` | Legacy alias → same as `/smtp2go/` |
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| `POST /portal/messaging/webhooks/sms/` | Legacy alias → same as `/smtp2go/` |
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| `POST /portal/messaging/webhooks/postcard/` | PCM order / mail tracking events |
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| `GET /portal/messaging/campaigns/<id>/status.json` | Live stats for the campaign report UI |
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| `GET /portal/messaging/postcard/` | PCM designer iframe |
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Code: `webhooks.py`, `providers/postcard/pcm.py`, `views.py`.
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