The welcome series: emails that turn a subscriber into a customer

MailyScaly team · Updated 2026-05-06 · ~8 min read

No email you ever send will be as eagerly awaited as the first one. A new subscriber has just asked for your emails — which is why welcome emails get opened 50–60% of the time, two to three times more often than regular newsletters. It’s a short window in which a stranger becomes either a customer or yet another “sleeping” contact on your list. This guide covers the 4-email sequence that makes the most of that window.

Why the welcome series is a foundation, not a nice-to-have

Three reasons we launch a welcome sequence for every client in their first week:

• The hottest moment. Interest in your brand will never be higher than on the day someone subscribes. Every day without an email is interest cooling off.
• Deliverability training. When new recipients open and click your emails in large numbers, Gmail and other mailbox providers learn that your emails are wanted. That lifts inbox placement for all of your email — campaigns included.
• A salesperson on autopilot. Like the abandoned cart sequence, the welcome series is built once and keeps working with every new contact without your involvement.

The 4-email sequence: structure and timing

Email #1 — promise delivered (sent immediately)

If your pop-up promised a 10% off code or a free guide, it has to be in the recipient’s inbox within a few minutes. This email will have the highest open rate of anything you will ever send — so besides the promised gift, put only two things in it: one sentence about what to expect (“once a week — tips and offers, no spam”) and one CTA button to the store.

Email #2 — the story (after 1–2 days)

The only email in your entire system where you can (and should) talk about yourself. Why did you start the store? What makes your approach different? One good behind-the-scenes photo works harder here than a professional photoshoot. The goal: when your next email lands, the recipient recognizes the sender as someone familiar — not just another store.

Email #3 — the proof (after 3–4 days)

A newcomer doesn’t yet know where to start with your range — show them. Your top 3–5 bestsellers with real customer reviews under each one. Social proof does the work for you here: “4.9★ from 214 reviews” says more than any description you could write yourself.

Email #4 — the reminder (after 6–7 days)

If the code hasn’t been used yet, it’s time to close the loop. An honest deadline (“your code is valid until Sunday”) that’s actually enforced, one CTA, no new arguments. For those who don’t use the code, the sequence ends after this email — pushing further grows unsubscribes, not sales.

Discount code strategy

Two rules that protect both your margin and your subscribers’ trust:

1. Promised means delivered — immediately. Holding the code back for later emails (“so they open more of them”) is a classic trick that ends in spam complaints. The person subscribed for the code — if it doesn’t arrive within 5 minutes, they won’t remember you fondly.
2. A deadline that’s real. “The code is valid for 7 days” only works if it genuinely stops working after 7 days. “Limited” offers that never expire teach people to ignore every deadline you set.

If you deliberately don’t use discounts (premium positioning), the welcome series works without a code too: in the first email, deliver a guide, your story, or your bestsellers instead. The only rule is that your signup form must never promise something the email doesn’t deliver.

Technical setup in Omnisend

1. Trigger: the standard “Subscriber added to list” event (or a specific form/pop-up if you want different sequences for different sources).
2. Exit condition: a purchase ends the sequence — someone who has just bought should get an order confirmation and the post-purchase sequence, not “here’s why you can trust us”.
3. Separating campaigns: exclude the “currently in the welcome automation” segment from your regular campaign audience — otherwise newcomers get a double dose of email.
4. Unique codes: use Omnisend’s auto-generated single-use discount codes instead of a shared “WELCOME10” — shared codes end up on coupon sites within a couple of months and eat into margin at your full-price buyers’ expense.
5. A/B test: start with the first email’s subject line and CTA button copy — the biggest traffic, the fastest conclusions.

The 5 most common mistakes

1. One email and done. The code gets delivered, but the story, the proof, and the reminder never do. Emails two through four typically generate about half of the sequence’s total revenue.
2. Welcome series + campaigns at the same time. The newcomer gets 5 emails in 3 days and hits “unsubscribe” before they’ve had a chance to buy.
3. The promised code arrives late. Spam complaints from people who asked for your emails — the most painful hit deliverability can take.
4. Every email is about you. “We were founded in 2015, our values are…” four emails in a row. The story gets one email; everywhere else, talk about what’s in it for the recipient.
5. The sequence never ends. An eighth “final reminder” about the same code. If it didn’t work within 7–10 days, let the person settle into your regular newsletters in peace.

How to measure results

• First email open rate: benchmark 50–60%. Below 40% — check deliverability (SPF, DKIM, DMARC) and whether the email goes out instantly.
• Sequence conversion: what % of new subscribers bought within 14 days of subscribing. Compare against a control group — subscribers from before the sequence launched.
• Code redemption: if only a few percent redeem the code, the problem is usually not the sequence, but the appeal of the offer or how your range is presented.

Frequently asked questions