Most email marketers have some version of a re-engagement campaign.
The subscriber has not opened, clicked, purchased, logged in, booked, renewed, or done whatever the brand considers “active” for a certain period of time. So, they are labelled inactive, dormant, lapsed, unengaged, or at risk.
Then they receive the usual treatment.
“We miss you.” “Come back.” “Still interested?” “Here’s 10% off.” “Last chance to stay subscribed.”
Sometimes those emails work. Sometimes a customer really did just need a reminder, a reason, or an incentive to return. But often, the problem is not that the email was not persuasive enough. The problem is that the brand treated every dormant subscriber as though they became inactive for the same reason.
And they did not.
That is why so many re-engagement campaigns are too blunt. They treat dormancy as a single behaviour, when it is actually a symptom with multiple possible causes.
A dormant subscriber is not automatically a lost subscriber. But they are also not automatically a discount opportunity.
That distinction matters.
Inactivity is not one behaviour
One of the biggest mistakes marketers make with dormant subscribers is assuming that inactivity means the same thing for everyone.
It does not.
Someone may be inactive because they bought a product with a long replacement cycle and simply do not need anything yet. Someone else may have subscribed for a discount and never had much intention of engaging beyond that first transaction. Another customer may still like the brand, but only buys seasonally. Another may have had a poor delivery, service, product, or website experience and quietly disengaged.
Someone else may still be reading emails, but not clicking. Another may have moved to a different channel, such as the app, store, marketplace, or search. Another may have become overwhelmed by frequency. Another may be waiting for the next sale because the brand has trained them to do exactly that.
The behaviour may look the same in the report. No recent engagement. No recent purchase. No visible action.
But the reasons behind that behaviour are very different. And if the reasons are different, the response should be different too.
Dormancy is a diagnosis problem
A re-engagement campaign should not be a panic button with a promo code attached.
Before deciding what to send, marketers need to understand what they are trying to solve. Are we trying to reactivate a valuable customer who has gone quiet? Are we trying to identify subscribers who still want to hear from us? Are we trying to encourage a second purchase? Are we trying to protect deliverability? Are we trying to separate low-intent subscribers from genuinely interested but inactive ones? Are we trying to learn why people stopped engaging?
Those are different objectives. Yet many brands send one generic campaign to everyone. And that is the problem.
If the subscriber is inactive because they no longer trust the brand, a discount may not fix it. If they are inactive because the product cycle is long, a “we miss you” email may feel premature. If they became inactive because they only wanted educational content, a sales-heavy offer may push them further away. If they are inactive because they are waiting for discounts, another discount simply reinforces the behaviour.
The first job is not to write the win-back email. The first job is to diagnose the reason for the dormancy.
Not every dormant subscriber is worth winning back
This is the part marketers sometimes resist. Not every dormant subscriber should be re-engaged.
Some subscribers are not valuable to the business. Some were never genuinely interested. Some came in through a competition, discount, free download, or one-off need and are unlikely to become meaningful customers. Some may be damaging engagement signals. Some may be increasing deliverability risk. Some may simply be better suppressed than pursued.
That may sound uncomfortable, especially when list size is still treated as a badge of honour in some businesses. But a large list full of people who do not want to hear from you is not an asset. It is a liability with a vanity metric attached.
The goal is not to keep every subscriber forever. The goal is to understand who is worth reactivating, who needs a different journey, who should receive less, and who should be allowed to leave cleanly.
Sometimes the most strategic outcome of a re-engagement programme is not getting someone to click. It is learning that they are no longer right for the list.
The danger of the blanket discount
Discounts are often the default re-engagement tactic because they are simple, measurable, and easy to understand. A subscriber has not bought for a while, so the brand sends an offer.
There is nothing inherently wrong with this. A well-timed offer can be useful, especially when price is a genuine barrier or when the customer simply needs a reason to act now.
But discounts are not a universal answer.
If a customer lapsed because they had a poor experience, a discount may feel like the brand is trying to buy their attention rather than fix the problem. If they lapsed because they do not currently need the product, the offer may be irrelevant. If they lapsed because the emails were too frequent or too promotional, another promotion is unlikely to help.
And if the customer has learned that ignoring the brand leads to a better deal, the win-back discount can quietly train exactly the behaviour the brand wants to reduce.
That does not mean never use discounts. It means do not use them as a substitute for understanding.
Sometimes the better re-engagement message is reassurance. Sometimes it is education. Sometimes it is a reminder of value. Sometimes it is a preference question. Sometimes it is a service-led message. Sometimes it is an honest, “Do you still want to hear from us?”
The offer should match the reason for inactivity. Not the other way round.
Of course, marketers will rarely know the exact reason someone has gone quiet. Customers do not usually fill in a helpful little form saying, “Dear brand, I am not dormant, I am simply waiting until October because that is when I usually buy from you.” Rude, frankly.
But we do not need perfect certainty to make better decisions. We need better clues.
Purchase history can tell us whether someone bought a replenishable product, a seasonal item, a gift, a one-off purchase, or something with a long consideration cycle. Engagement history can tell us whether they are still clicking, quietly reading, or completely absent. Acquisition source can tell us whether they joined through a discount, competition, educational content, event, lead magnet, or purchase. Category behaviour can tell us what they were originally interested in. Service history can tell us whether something may have gone wrong. Discount behaviour can tell us whether they tend to buy only when there is an offer. Cross-channel data can show whether they are inactive in email but still active through the website, app, store, or sales team.
None of this gives marketers a perfect answer. But it does help form a more useful hypothesis.
A replenishable product buyer may need a timely reminder. A seasonal buyer may need to be left alone until the right buying window. A first-time buyer may need reassurance or product support before another sales message. A discount-led buyer may need a carefully managed offer strategy. A content-led subscriber may need more education before commercial messaging. A customer who had a poor experience may need service recovery, not another product recommendation.
The goal is not to become psychic. The goal is to stop treating every inactive subscriber as though they have the same problem, at the same moment, for the same reason.
Some subscribers are not inactive. They are invisible.
Another reason to be careful with dormancy is that email metrics do not capture everything.
A subscriber may not click, but they may still read. A customer may not engage with email, but they may buy through the website, app, store, marketplace, phone, or sales team. A subscriber may ignore promotional emails but pay attention to service messages. A B2B prospect may read quietly for months before taking action through another channel.
So, before deciding someone is dormant, ask: dormant where?
Dormant in email? Dormant in purchase? Dormant in product usage? Dormant in the app? Dormant in the loyalty programme? Dormant across the whole relationship?
Those answers matter because they change the strategy.
A story from Dela Quist illustrates this perfectly. Years ago, he used to automatically file away all of Dell’s emails without opening them. Not because he was uninterested in Dell, but because he knew how he bought from them. He had an agency, he bought in bulk, and he knew Dell usually had its best prices in October. So, every year, he would ignore the emails for the majority of the year, then open the folder in September and review what he needed before buying.
From Dell’s email engagement data, he probably looked inactive. In reality, he was a seasonal, high-intent buyer with a clear purchase pattern.
Then, one year, he opened the folder in September and discovered Dell had stopped emailing him in July because he had not been opening the emails.
That is the danger of interpreting inactivity too narrowly. If the brand only looks at opens, clicks, or recent engagement, it can mistake a valuable customer with a seasonal buying rhythm for someone who has lost interest.
The customer had not disappeared. The measurement was simply too narrow to see him.
Dormant subscribers need segmentation too
Segmentation should not stop once someone becomes inactive. In fact, that is often when segmentation becomes more important.
A first-time buyer who has not bought again needs a different approach from a loyal customer who has gone quiet. A high-value customer who has lapsed needs a different approach from someone who only ever bought discounted items. A subscriber who still clicks but does not buy needs a different approach from someone who has ignored every email for a year.
A customer who bought a replenishable product may need timing, convenience, or a reminder. A customer who bought a one-off gift may need a different category, a seasonal prompt, or nothing at all. A B2B lead who downloaded one report may still be in research mode, while another may have gone cold because the content never moved them forward.
Useful dormant segmentation might look at recency, frequency, monetary value, engagement, product category, purchase type, acquisition source, lifecycle stage, channel activity, service history, discount behaviour, and likely buying cycle.
The point is not to create complexity for the sake of it. The point is to avoid treating fundamentally different customers as though they all need the same “we miss you” message.
Re-engagement should help you learn
A good re-engagement programme should not only try to win people back. It should help the business learn.
Why are people becoming inactive? Which acquisition sources produce poor-quality subscribers? Which first purchase categories lead to repeat behaviour? Which customers lapse after a service issue? Which segments return without a discount? Which messages restore interest? Which subscribers are better suppressed? Which journeys are failing to create a second meaningful action?
These questions turn re-engagement from a last-chance campaign into a diagnostic tool. That is far more valuable.
If many first-time buyers lapse after one purchase, the problem may not be the win-back campaign. It may be the post-purchase journey, the delivery, the packaging or the customer service. If customers acquired through heavy discounts never return without another offer, the problem may be the acquisition strategy. If subscribers downloaded educational content but never respond to sales messages, the nurture path may be too aggressive. If high-value customers stop engaging after a poor service experience, the issue is not email copy. It is customer experience.
Re-engagement data can reveal those patterns, but only if marketers are willing to look beyond the campaign result.
Sometimes silence is the right answer
One of the most overlooked parts of re-engagement is knowing when to stop.
If someone has ignored every attempt to re-engage, continuing to send more emails is not persistence. It is noise.
At some point, the respectful and strategic decision may be to suppress them, reduce frequency, or move them into a sunset path.
This matters for deliverability, of course. Sending repeatedly to people who do not engage can weaken signals over time, especially if it leads to complaints, spam folder placement, or continued disengagement. But it also matters for the customer experience.
People should not have to keep ignoring a brand forever because the brand cannot accept the relationship has changed. A clean, respectful exit is better than endless low-value chasing. And sometimes, suppressing the wrong people gives the brand more room to focus on the right ones.
Measure what happens next
If re-engagement is treated only as a campaign, success is often reduced to opens, clicks, conversions, and revenue from that send.
Those metrics matter, but they are not enough.
A better re-engagement framework looks at what happens next. Did the subscriber continue engaging after the campaign? Did they make a second or third purchase? Did they buy at full price, or only with a discount? Did they return to the same category or a different one? Did they update preferences? Did the programme help identify who should be suppressed?
This is important because a re-engagement campaign can look successful in the short term and still be weak strategically.
If it generates orders only from customers who immediately go dormant again, what has really been won back? If it revives buyers only through margin-eroding discounts, is that sustainable? If it creates clicks but does not restore meaningful behaviour, has the relationship actually changed?
The point is not simply to get a response. The point is to restore value, or learn that value is unlikely to return.
Why this matters for email marketers now
Dormancy is becoming harder to interpret because customer behaviour is becoming harder to see in one place.
People move across channels. They read without clicking. They buy through different routes. They use apps, stores, marketplaces, search, social, and sales teams. They may engage quietly for months before acting, or disappear for reasons the email platform cannot see.
At the same time, email marketers are under pressure to protect deliverability, drive revenue, retain customers, and prove value.
That is why dormant subscriber strategy cannot sit at the bottom of the list as a last-minute “we miss you” campaign. It needs proper thinking.
Email marketers need to understand lifecycle behaviour, segmentation, customer psychology, deliverability, testing, measurement, and customer journey context. They need to know how to distinguish between people who are worth reactivating, people who need a different message, people who need more time, and people who should be let go.
That is why these skills sit at the heart of the Holistic Email Academy.
Our lifecycle and automation courses help marketers design re-engagement programmes around real customer behaviour, not blunt inactivity rules. Our strategy courses help marketers connect retention activity to business value and customer needs. Our deliverability courses help marketers understand how list quality, engagement, complaints, and suppression affect inbox performance. Our testing and optimisation courses help marketers learn what actually changes behaviour, not just which discount gets the most clicks. And our psychology and persuasive copywriting courses help marketers understand why people stop acting, what might bring them back, and when the most respectful response is to stop pushing.
Because dormant subscribers are not one audience. They are different people, in different contexts, with different reasons for going quiet.
Re-engagement is not a last-chance email
A good re-engagement strategy is not just a final attempt to squeeze value from people before they disappear. It is part of lifecycle marketing. It should help the business understand who is drifting, why they are drifting, whether they can be helped, whether they are worth pursuing, and what the right next step should be.
Sometimes that next step is a reminder.
Sometimes it is reassurance.
Sometimes it is a useful piece of content.
Sometimes it is a different offer.
Sometimes it is a preference update.
Sometimes it is suppression.
Sometimes it is goodbye.
That is not failure. That is maturity. The mistake is treating all dormant subscribers as though they are the same person with the same problem, waiting for the same incentive.
They are not. Dormancy is not one behaviour. It is a signal. And if marketers want to build better re-engagement programmes, they need to stop asking only, “How do we win them back?”
They need to start asking, “Why did they go quiet in the first place?”
