Comprehensive Email Module

End-to-end email marketing system covering strategy, automation, deliverability, list management, personalization, and analytics — designed for teams managing email at scale.

When to Use

Deploy this module when:

• Managing email marketing across multiple segments and sequences
• Need advanced automation beyond basic sequences
• Deliverability issues are affecting reach
• Scaling from simple newsletters to full lifecycle email marketing

Use simpler email tools when:

• Sending occasional newsletters (use Mailchimp basics)
• Transactional emails only (use SendGrid/SES directly)
• Small list (< 1000 subscribers)

Quick Start

Email Strategy Framework

Copy
## Email Marketing Strategy

### Audience Segments
| Segment | Size | Characteristics | Email Cadence |
|---------|------|----------------|---------------|
| Active users | {n} | Used product in last 30 days | 2x/week |
| Trial users | {n} | In free trial | Daily during trial |
| Churned | {n} | Inactive 60+ days | 1x/month re-engage |
| Leads | {n} | Not yet signed up | 1x/week nurture |

### Email Types
| Type | Purpose | Frequency | KPI |
|------|---------|-----------|-----|
| Newsletter | Engagement | Weekly | Open rate |
| Product updates | Adoption | Bi-weekly | Feature usage |
| Onboarding | Activation | Triggered | Activation rate |
| Re-engagement | Retention | Triggered | Reactivation rate |
| Promotional | Revenue | Monthly | Revenue per email |

Deliverability Checklist

Copy
## Deliverability Optimization

### Authentication
- [ ] SPF record configured
- [ ] DKIM signing enabled
- [ ] DMARC policy set (start with p=none, move to p=quarantine)

### List Hygiene
- [ ] Remove hard bounces immediately
- [ ] Suppress soft bounces after 3 consecutive
- [ ] Re-engagement campaign for 90-day inactive
- [ ] Remove 180-day inactive from regular sends
- [ ] Double opt-in for new subscribers

### Content
- [ ] Text-to-image ratio > 60:40
- [ ] No spam trigger words in subject
- [ ] Unsubscribe link visible and functional
- [ ] Physical address in footer
- [ ] Consistent "From" name and address

Core Concepts

Email Lifecycle

Acquisition → Welcome → Onboarding → Engagement → Monetization → Retention
     |            |           |            |              |            |
     v            v           v            v              v            v
  Opt-in     Welcome      Product     Newsletter     Upsell       Win-back
  forms      series       tutorials   content        offers       re-engage

Personalization Levels

Level	Technique	Lift	Effort
Basic	First name, company	+5-10%	Low
Behavioral	Based on actions taken	+15-25%	Medium
Predictive	AI-driven content selection	+20-30%	High
Dynamic	Real-time content personalization	+25-40%	High

Deliverability Factors

Factor	Impact	Action
Sender reputation	Critical	Warm up new IPs, monitor blacklists
Authentication	High	SPF, DKIM, DMARC
List quality	High	Remove inactives, verify emails
Engagement	High	Send to engaged users first
Content	Medium	Avoid spam triggers, balance images
Frequency	Medium	Don't email too often or too rarely

Configuration

Parameter	Default	Description
esp	—	Email service provider
sending_domain	—	Domain for sending emails
warmup_plan	Gradual	IP warmup schedule
bounce_threshold	3	Soft bounces before suppression
inactive_threshold	90	Days before re-engagement trigger
sunset_threshold	180	Days before removal from list
personalization_level	"behavioral"	Personalization strategy

Best Practices

1. Authenticate your domain — SPF, DKIM, and DMARC are non-negotiable for deliverability
2. Clean your list quarterly — remove hard bounces, suppress inactives, verify questionable addresses
3. Segment before you send — relevant emails to smaller segments beat broadcast to everyone
4. Warm up new IPs gradually — start with your most engaged subscribers and scale over 4-6 weeks
5. Monitor deliverability metrics — track inbox placement, not just send counts
6. Respect frequency preferences — let subscribers choose how often they hear from you

Common Issues

Emails going to spam: Check SPF/DKIM/DMARC configuration. Review content for spam triggers. Warm up sending IP. Clean inactive subscribers from your list.

Declining open rates over time: Segment more aggressively. Test new subject line approaches. Reduce frequency for less-engaged segments. Run re-engagement campaigns.

High unsubscribe rate: You're sending too frequently or content isn't relevant. Add a "reduce frequency" option. Survey unsubscribers for feedback.