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104 lines
4.0 KiB
Markdown
104 lines
4.0 KiB
Markdown
# Email Deliverability — Dealix Operations
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Practical checklist to keep Sami's Gmail (and later @dealix.me) inbox-trusted.
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## Phase 1 — Personal Gmail (now)
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Limits Google enforces on a personal Gmail address:
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- ~500 messages/day soft cap
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- 2,000 messages/day for Workspace
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- Bulk sender rules apply at ~5,000+ messages/day to consumer inboxes (one-click List-Unsubscribe required, spam rate < 0.3%)
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### What Dealix already enforces
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- Default `DAILY_EMAIL_LIMIT=50` (well under 500)
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- Default `EMAIL_BATCH_SIZE=10`
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- Default `EMAIL_BATCH_INTERVAL_MINUTES=90`
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- `List-Unsubscribe` header (RFC 8058 one-click) on every send
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- Plain-text opt-out line at the bottom of every Arabic body
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- Bounce auto-suppress: any 4xx/5xx send → recipient added to suppression list
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- STOP/إيقاف reply auto-suppresses
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### What Sami should monitor weekly
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- Gmail Postmaster Tools → reputation: keep IP and domain at "High"
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- Spam-reported rate: keep under 0.1% (Google enforces 0.3% cap)
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- Bounce rate: keep under 5%; if >10% → Dealix auto-pauses sends
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## Phase 2 — Move sender to @dealix.me (after first 3 paid pilots)
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Once you have proof, switch to a domain you control. Better trust + survives any single Gmail action.
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### Required DNS records
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| Type | Name | Value | Why |
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|---|---|---|---|
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| TXT | `dealix.me` | `v=spf1 include:_spf.google.com -all` | SPF — declares Google as authorized sender |
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| TXT | `default._domainkey.dealix.me` | (paste DKIM key from Workspace/SendGrid) | DKIM — cryptographic signing |
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| TXT | `_dmarc.dealix.me` | `v=DMARC1; p=quarantine; rua=mailto:dmarc@dealix.me; pct=100` | DMARC — alignment policy |
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| TXT | `_dmarc.dealix.me` | After 30 days clean: `p=reject` | Stricter policy once stable |
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| MX | `dealix.me` | Workspace MX 10 priority | If using Google Workspace |
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### Verification
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- `dig +short TXT dealix.me`
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- `dig +short TXT default._domainkey.dealix.me`
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- `dig +short TXT _dmarc.dealix.me`
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- mxtoolbox.com/SuperTool.aspx — paste domain → "SPF/DKIM/DMARC Lookup"
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## Phase 3 — Move outbound to SendGrid / Postmark (after 5+ paid)
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Personal Gmail is fine for review-and-send; transactional volume needs proper ESP.
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| | SendGrid | Postmark |
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|---|---|---|
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| Free tier | 100/day forever | None — $15/mo for 10K |
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| Saudi inbox delivery | OK | Excellent |
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| Setup time | 30 min | 30 min |
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| Recommended | Use after 50+ daily sends | If deliverability is critical |
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After ESP setup:
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1. Add SPF entry: `include:sendgrid.net` or `include:spf.mtasv.net` (Postmark)
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2. Verify DKIM in ESP dashboard
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3. Add `SENDGRID_API_KEY` (or `POSTMARK_API_TOKEN`) to Railway env
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4. Implement a thin adapter alongside Gmail in `auto_client_acquisition/email/sendgrid_send.py`
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5. Enable for low-risk emails only (P0/P1 leads, no personal-domain recipients)
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## Bounce + spam-complaint handling
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Already wired:
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- `EmailSendLog.status='bounced'` → `data_suppression_list` row created
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- Reply with "STOP" / "OPT OUT" / "إيقاف" → auto-classified as `unsubscribe` → suppression list
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Manual additions (when needed):
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```
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POST /api/v1/data/suppression
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body: {"email": "x@example.com", "reason": "manual_complaint_2026_05"}
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```
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## Anti-patterns (never do)
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- ❌ Send 500 emails in one hour (rate limit + spam folder)
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- ❌ Use generic "Dear Sir/Madam" copy at scale
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- ❌ Send the exact same body to 50 recipients — Gmail dedups + flags as bulk
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- ❌ Skip the opt-out line "to feel more personal"
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- ❌ Send to scraped LinkedIn emails
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- ❌ Reply to STOP requests with "Please confirm" — STOP is final
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## Daily monitoring (automated)
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`/api/v1/email/status` returns:
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- `sent_today`
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- `remaining_today`
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- `gmail_configured`
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If `sent_today > 40` and it's before noon → pause sends until tomorrow (likely spam-trap risk).
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## Quarterly: rotate sender names
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Saudi B2B prefers consistent senders. Don't rotate email addresses, but DO rotate:
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- Subject line patterns (A/B test 3 lines per quarter)
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- First-paragraph templates (tracked in `automation/score-tuner/run`)
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- Send-time windows (test 9am vs 11am vs 2pm Riyadh)
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