Before reactivating, define what dormant means for your business:
Business type
Dormant definition
Rationale
E-commerce (daily/weekly sends)
No opens or clicks in 90 days
Frequent sends mean 90 days = many missed touchpoints
B2B SaaS (weekly/biweekly sends)
No opens or clicks in 120 days
Longer consideration; less frequent sending
Newsletter (weekly)
No opens or clicks in 90 days
Regular content consumption expected
Seasonal business
No engagement in 2 full seasons
Seasonal buyers may skip seasons
B2B enterprise (monthly sends)
No opens or clicks in 180 days
Longer sales cycles; fewer touchpoints
Nonprofit (monthly sends)
No opens or clicks in 12 months
Donor relationships are long-term
Real estate (monthly sends)
No opens or clicks in 12 months
Transaction cycle is long; stay top of mind
Engagement tiers for segmentation
Tier
Definition
Action
Active
Opened or clicked in last 30 days
Continue normal sending
Cooling
Opened or clicked 30-90 days ago
Monitor; test different content
Dormant
No engagement in 90-180 days
Reactivation campaign
Dead
No engagement in 180+ days; OR hard bounced
Sunset campaign, then remove
Reactivation Campaign Strategies
Strategy 1: The "We miss you" sequence
Email
Timing
Subject line approach
Content
Goal
Acknowledgement
Day 1
"It's been a while" / "We noticed you've been quiet"
Acknowledge absence; ask if they still want to hear from you; highlight what they have missed
Reopen relationship
Best content recap
Day 5
"In case you missed it" / "Our most popular [content]"
Top 3-5 pieces of content they missed; most popular products; biggest updates
Demonstrate ongoing value
Exclusive offer
Day 10
"Something special for you" / "A thank-you for being on our list"
Discount, free resource, exclusive access, or bonus available only to this segment
Incentivise re-engagement
Final ask
Day 15
"Should we keep sending?" / "Stay or go - your choice"
Clear choice: click to stay, or we will stop sending; explain what they will miss
Clean decision; respect autonomy
Strategy 2: Preference-based reactivation
Email
Timing
Content
Goal
Preference update request
Day 1
"We want to send you only what matters. Update your preferences: [frequency, topics, format]"
Learn what they actually want
Tailored content based on preference
Day 7
Content matching their stated preference (if they updated)
Deliver relevance
Follow-up for non-responders
Day 14
Simplified ask: "Just reply with the topic you care most about: [A/B/C]"
Lower friction engagement
Strategy 3: Survey-based reactivation
Email
Timing
Content
Goal
Short survey
Day 1
"Quick question: why did you stop reading our emails? [Options: too many, not relevant, switched to competitor, other]"
Understand churn reasons
Response-based follow-up
Day 3
Personalised based on survey response (e.g., "You said too many emails, so we moved you to monthly digest")
Address specific objection
Strategy 4: Product or service reactivation (e-commerce / SaaS)
Email
Timing
Content
Goal
Product update
Day 1
"A lot has changed since your last [purchase/login]. Here's what's new..."
Show product evolution
Social proof
Day 5
"[X] customers chose [product] this month. Here is what they are saying..."
FOMO; peer validation
Personalised recommendation
Day 10
"Based on your past [purchase/usage], you might like [new products/features]"
Relevance-driven re-engagement
Win-back offer
Day 15
"Come back and get [discount / extended trial / bonus]"
Financial incentive
What to Do After Reactivation
For subscribers who re-engage
Action
When
Why
Move back to active segment
Immediately on engagement
Resume normal sending
Send a thank-you or welcome-back
24 hours after re-engagement
Reinforce positive behaviour
Gradually increase send frequency
Over 2-4 weeks
Avoid overwhelming them again
Monitor engagement closely for 60 days
Ongoing
Ensure sustained re-engagement
Tag with "reactivated" for tracking
Immediately
Measure reactivation campaign ROI
For subscribers who do not re-engage
Action
When
Why
Send final sunset email
After full reactivation sequence
One last chance; respect and transparency
Remove from active list
7 days after sunset (if no engagement)
Protect deliverability; reduce costs
Keep in suppression list
Indefinitely
Do not accidentally re-add them
Retain data (do not delete record)
Indefinitely (within data retention policy)
Historical reporting; avoid re-importing
Consider one final reactivation per year
Annually
Some contacts reactivate after longer dormancy
Measuring Reactivation Success
Metric
What it measures
Good result
Reactivation rate
% of dormant contacts who re-engaged
5-15%
Revenue from reactivated contacts (30 days)
Dollar value of reactivated engagement
Varies by business
List size reduction after sunset
Contacts removed who did not re-engage
30-60% of dormant segment
Deliverability improvement (post-sunset)
Open rate and inbox placement change
2-5% improvement in open rate
Spam complaint rate (during campaign)
Complaints from reactivation emails
Under 0.1%
Unsubscribe rate (during campaign)
Unsubscribes from reactivation emails
Under 2% (expected and healthy)
Cost savings from list reduction
Reduced ESP costs from smaller list
$50-$500+/month depending on list size
Preparing Lists for Reactivation
Before running reactivation campaigns, export your subscriber lists from your ESP, CRM, e-commerce platform and any other data sources. Upload these exports to Email Extractor to extract and deduplicate email addresses across all systems. Dormant subscribers often exist in multiple databases (your ESP, CRM, e-commerce platform and separate marketing tools), and deduplication ensures each subscriber receives only one reactivation sequence rather than overlapping campaigns from different systems.
