Email Automation
Re-Engagement Campaigns: How to Win Back Inactive Subscribers
Every list accumulates subscribers who stop opening. Left alone, they drag down your engagement metrics and your sender reputation, mailbox providers notice when a chunk of your audience never interacts. A re-engagement campaign wins back the ones still interested and cleanly retires the rest.
Why inactive subscribers hurt you
Deliverability is driven by engagement. When you keep emailing people who never open, providers read it as a signal that your mail is unwanted and start routing it to spam, even for your engaged subscribers. Pruning dead weight protects the inbox placement of everyone who does care.
Define “inactive” for your business
Inactivity depends on your send frequency and sales cycle. A common threshold is no opens or clicks in 90 days for frequent senders, or longer for businesses with long purchase cycles. Pick a definition, then build a segment that captures those subscribers automatically.
The win-back sequence
- Email 1, We miss you: Remind them of the value you provide and invite them back, ideally with your best content or a strong offer.
- Email 2, Here’s an incentive: A discount or exclusive perk to re-spark interest.
- Email 3, Last chance / confirm: Tell them you’ll stop emailing unless they engage, and give a one-click way to stay subscribed.
Sunset the ones who don’t respond
If someone ignores the entire win-back sequence, remove or suppress them. This feels counterintuitive, you worked hard to get them, but a smaller, engaged list outperforms a large, indifferent one and keeps you out of spam. Sunsetting is list maintenance, not failure.
Prevent disengagement in the first place
The best re-engagement is not needing one. Send relevant, segmented content, let subscribers set preferences, and watch engagement trends so you can act before someone fully checks out. A preference center that lets people choose frequency often saves subscribers who would otherwise leave.
Key takeaways
- ✓Inactive subscribers hurt deliverability for your whole list.
- ✓Define inactivity based on your send frequency and sales cycle.
- ✓Run a 3-email win-back: reminder, incentive, last chance.
- ✓Sunset non-responders, engaged-but-smaller beats large-but-stale.
- ✓Prevent disengagement with relevance and a preference center.
Valter Brandt
Chief Marketing Officer
Valter Brandt is the Chief Marketing Officer of ThisCom, working with clients across the United States and Europe. He has led marketing strategy through the major shifts in social advertising, mobile, content marketing, programmatic media, and marketing automation.
Frequently asked questions
When is a subscriber considered inactive?+
It depends on your sending cadence, but a common threshold is no opens or clicks in 90 days for regular senders. Businesses with longer purchase cycles may use a longer window.
Should I delete inactive subscribers?+
If they ignore a re-engagement sequence, yes, suppress or remove them. Continuing to email unengaged contacts harms your sender reputation and can push your mail to spam for engaged subscribers too.
What should a win-back email say?+
Acknowledge the absence, remind them of your value, and offer a reason to return, often an incentive. The final email should clearly state you’ll stop emailing unless they engage, with a one-click way to stay subscribed.
How do I stop subscribers from going inactive?+
Send relevant, segmented content at a sustainable frequency, and offer a preference center so subscribers can choose what and how often they receive. Relevance is the best defense against disengagement.
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