Win-back emails: what to do with inactive subscribers
How to re-engage subscribers who stopped reading and when to remove them: defining inactive, a three-email sequence and Gmail's spam rules.
Every email list fills up over time with people who no longer read: they changed interests, addresses, jobs. Writing to them brings no sales and, worse, can push your emails into spam even for people who want them.
This guide covers how to spot inactive subscribers, how to try to win them back with a short sequence and when to remove them.
When is a subscriber inactive?
When they haven't clicked for a long time. The threshold depends on how often you write: with a weekly newsletter, 90 days without a click is a clear signal; with a monthly one, 180 is better. Pick a threshold and apply it the same way every time.
Use clicks, not opens. Mailchimp warns that opens are affected by Apple Mail Privacy Protection, and Google notes in its sender guidelines that it doesn't track opens. A subscriber can show as "opened" without ever reading.
Why remove inactive subscribers?
For delivery to everyone else. Google's sender guidelines ask senders to keep the spam rate reported in Postmaster Tools below 0.3% and recommend staying below 0.1%. People who don't remember signing up are the most likely to press "report spam".
- Complaints per 1,000 emails: the limit not to reach
- 3
- Complaint per 1,000 emails: the recommended ceiling
- 1
- Hours to process an unsubscribe request
- 48
In addition, a smaller, active list has another advantage: your metrics become reliable. You know how many people actually read and buy, as we explain in creator metrics that matter.
What does a win-back sequence look like?
Three emails, a few days apart:
- "Do you still want my emails?" Short and honest, with a button to stay and one to leave. Remind them in one line what you write about.
- The best of recent months. Your most popular content, with the same stay button.
- The last notice. "If you don't click by Friday, I'll remove you from the list: you can always sign up again."
As a result, clickers stay; anyone who doesn't click after the third is removed, or moved to a segment you no longer email.
An example
A creator has a weekly newsletter with 6,000 subscribers. Applying a 90-day no-click threshold, she finds 2,100 are inactive. She sends them the three-email sequence over two weeks: 260 click "keep me on the list" and rejoin the active list, 140 unsubscribe themselves, the remaining 1,700 don't respond and move to a segment she no longer emails. Her active list drops to about 4,160 people. In the following weeks her click rate rises, because the denominator now contains people who read, and her next launch's sales are in line with the previous one. Spam complaints, which had been close to the recommended ceiling, also fall. In practice, she lost a third of the list on paper and no sales in reality. The numbers are our example.
How do you stop subscribers going inactive?
By writing regularly and keeping the promise you made at sign-up. Someone who signed up for a photography checklist and only receives course offers soon stops reading. Welcome emails, as covered in the email sequence to sell an online course, build the reading habit from day one.
Which mistakes should you avoid?
- Looking at opens. They're distorted: use clicks.
- Emailing non-readers forever. It raises spam complaints.
- Long win-back sequences. Two or three emails are enough.
- Hiding the leave button. People who want out must be able to leave at once.
- Fearing a smaller list. What counts is who reads, not how many there are.
Key terms. An inactive subscriber hasn't engaged with your emails for a set period. A win-back sequence asks inactive subscribers whether they want to stay. The spam complaint rate is the share of recipients who report an email as unwanted.
How we checked. We found no independent data on how many inactive subscribers return after a win-back sequence, so we don't quote rates. We read Google's email sender guidelines and FAQ, and Mailchimp's benchmarks page with its note on opens. The sequence and example are ours. Contact: hi@heytea.app. Editorial note: we check every figure against the sources listed below and correct mistakes openly.
Frequently asked questions
When is a subscriber inactive?
When they haven't clicked for a long time, say 90 or 180 days, depending on how often you write. Clicks are better than opens, because opens are distorted by Apple Mail Privacy Protection, as Mailchimp also warns. Pick a threshold and apply it consistently.
Why remove inactive subscribers?
Because emailing people who no longer read raises the risk of spam complaints and hurts delivery for everyone else. Google asks senders to keep spam complaints below 0.3%, ideally below 0.1%. A smaller, active list is worth more than a big, silent one.
What should a win-back email say?
Ask a direct, honest question: 'Do you still want my emails?', with one button to stay and one to leave. Add something useful, like your most popular piece from recent months, and say what happens if they don't respond.
How many win-back emails should you send?
Two or three, a few days apart. Anyone who doesn't click after the third is removed from the list, or moved to a segment you no longer email. A longer sequence to people who don't read only raises complaint risk.
Doesn't removing subscribers cost sales?
Rarely. People who haven't opened or clicked for months are unlikely to buy at your next launch. Meanwhile, an active list improves delivery and makes your metrics more reliable: you know how many people actually read.
Sources
- Google, "Email sender guidelines". Accessed 19 October 2026. support.google.com
- Google, "Email sender guidelines FAQ". Accessed 19 October 2026. support.google.com
- Mailchimp, "Email Marketing Benchmarks", December 2023 data. Vendor source. Accessed 19 October 2026. mailchimp.com