Win-Back Flows: The 90-Day Silence Rule

A buyer who has not opened in ninety days is not ignoring you. They have filed your mail under noise, and the win-back has one job: prove the next email is worth opening.

A win-back flow triggers at ninety days of silence, sends three emails over two weeks, and leads with a reason to return, not a discount. The discount comes last, and only for buyers who open but do not buy.

Why ninety days

Ninety days is the line because it is long enough to be real and short enough to matter. A buyer who has not opened in thirty days might be busy, on holiday, or in a season when they do not buy. A buyer who has not opened in ninety days has made a decision, even if they do not know it: your mail is skippable. Waiting longer does not make the decision less final. It makes the buyer harder to reach, because the email address itself starts to decay.

The ninety-day mark is also the point where the cost flips. Mailing a silent subscriber costs deliverability, because inbox providers watch engagement, and a list full of silent addresses trains the filters to treat your mail as bulk. The win-back is not just a revenue play. It is list hygiene with a revenue upside.

Related reading on this site: SegmentSage and Sunset Policies for Dead Subscribers: When to Stop Emailing cover the neighbouring problems in more depth.

The three emails

The first email is a reminder, not an offer. Show the buyer what they bought, what has changed since, and what they are missing. A photo of the product they bought, a new color, a restock, a review from a buyer like them. The subject line should name the product, not the brand. The buyer forgot the brand. They remember the product.

The second email, three days later, is the reason. A story, a guide, a use case they have not tried. The buyer who bought trail shoes might want the winter trail guide. The buyer who bought a gift might want the gift guide for the next occasion. The third email, a week later, is the incentive, and only for buyers who opened one of the first two. A discount offered to someone who never opened is a discount thrown away. A discount offered to someone who opened but did not buy is a nudge.

When to let go

A win-back flow that runs forever is a list that never gets cleaned. After the third email, the buyer who still has not opened gets suppressed. Not deleted, suppressed: no promotional mail, no win-back, nothing until they re-engage on their own. The suppression protects deliverability for the buyers who do open, and it keeps the list honest.

The number to watch is the reactivation rate: the share of win-back recipients who open or buy within thirty days. A rate above 10 percent is a working flow. Below 5 percent, the problem is not the flow. It is the list, the product, or the emails themselves, and no amount of win-back copy will fix a product the buyer no longer wants.

Frequently asked questions

When should a win-back flow trigger?

At ninety days of silence. Thirty days is too soon, the buyer might just be busy. Ninety days is a decision, and waiting longer makes the address harder to reach.

How many emails should a win-back flow have?

Three over two weeks. A reminder, a reason to return, and an incentive last, only for buyers who opened but did not buy.

Should I offer a discount in a win-back email?

Not first. Lead with the product and the reason to return. Offer the discount in the third email, and only to buyers who opened one of the first two.

What is a good win-back reactivation rate?

Above 10 percent of recipients opening or buying within thirty days. Below 5 percent, the problem is the list or the product, not the flow.