Reviewed by the SEOPointz team · Last reviewed June 2026. Open-rate figures here are reported with the Apple Mail Privacy caveat that inflates them, so we lean on click and revenue data instead. SEOPointz may earn a commission from some links; it never changes what we recommend.
Email is the rare marketing channel that gets more valuable as everything around it gets noisier. It’s cheap, you own the list, and the returns are hard to argue with: e-commerce email marketing returns somewhere around $36 to $42 for every dollar spent globally, and higher still in the U.S. But that headline number hides a trap. The average is dragged up by a handful of brands running smart, automated, segmented programs — while everyone else blasts the same newsletter to their whole list and wonders why engagement is flat. This guide is about being in the first group.
Stop chasing open rates — they’re broken now
You’ll see open rates quoted anywhere from 25% to over 40% depending on the source, and for e-commerce specifically they tend toward the lower end. Here’s the catch: Apple Mail Privacy Protection preloads images for Apple Mail users whether or not they ever open the email, and Apple Mail is nearly half of all email clients. That means a big share of your “opens” are machines, not people. The metrics that still tell the truth are click rate (roughly 2–3.5% for e-commerce), click-to-open rate, and ultimately revenue per email. Optimize for clicks and conversions, and treat open rate as a soft signal at best.
Automated flows beat broadcasts — by a lot
The single biggest difference between a high-ROI email program and an average one is automation. Instead of manually sending the same message to everyone, you build flows that trigger on behavior — and they run while you sleep. The numbers are stark: in one large Klaviyo analysis, three-email abandoned-cart sequences generated $24.9 million against just $3.8 million from single emails, roughly a 6.5x difference. These are the flows worth building first.
| Automated flow | Trigger | What it does |
|---|---|---|
| Welcome series | New subscriber | Introduces the brand, often with a first-order incentive; sets the highest-engagement moment to work |
| Abandoned cart | Item added, not purchased | Recovers an average of ~10% of lost carts; best as a 2–3 email series (~1 hour, 24 hours, 72 hours) |
| Browse abandonment | Product viewed, not added | Re-engages a softer signal of intent than a cart |
| Post-purchase | Order placed | Builds loyalty, requests reviews, and seeds the next purchase |
| Win-back | Lapsed buyer | Re-activates customers who haven’t bought in a set window |
If you build nothing else, build the welcome and abandoned-cart flows. They consistently produce the most revenue per email of any campaign type.
Segment, or accept worse results
Sending one email to your entire list is the fastest way to train people to ignore you — and to get marked as spam, which hurts deliverability for everyone on the list. The fix is segmentation: group people by behavior and send each group something relevant. Useful starting segments include new versus returning buyers, high-value customers, recent browsers, and people who haven’t engaged in 60–90 days. A cart abandoner and a browse abandoner are different signals of intent and deserve different messages; treating them the same leaves money on the table.
Write emails people actually want to open
Mechanics aside, the content still has to earn attention. A few principles hold up well:
- Subject lines are the whole game for getting opened. Keep them short, specific, and honest — clickbait that under-delivers trains unsubscribes.
- One clear call to action. Every email should have a single job. Competing buttons split attention and lower clicks.
- Design for the thumb. Most of your list reads on a phone, so single-column layouts, large tap targets, and a CTA visible without scrolling matter.
- Give before you ask. Mix genuinely useful content — how-tos, styling ideas, early access — in with the promotions so your emails aren’t purely transactional.
Measure incremental lift, not vanity totals
It’s tempting to credit every sale that follows an email to the email. Don’t. Some of those people would have bought anyway. Serious programs use holdout tests — withholding email from a small random slice of the audience — to measure true incremental revenue. Without that, a flow will report inflated gross recovery that doesn’t reflect real lift. The honest number is usually lower than the dashboard’s, but it’s the one you can actually make decisions on.
Frequently asked questions
Is email marketing still worth it for a small store?
Yes — arguably more so for small stores, because the cost is low and you own the audience outright rather than renting it from an ad platform. Even a basic welcome and abandoned-cart flow typically pays for the tool many times over.
How often should I email my list?
There’s no universal number, but relevance matters more than frequency. A segmented, well-targeted send twice a week usually outperforms a daily blast to everyone, which mostly drives unsubscribes and spam complaints.
Why are my open rates unreliable?
Apple Mail Privacy Protection auto-loads email images, registering “opens” that never happened, and Apple Mail is close to half of all inboxes. Judge performance by clicks, click-to-open rate, and revenue instead.
The two highest-leverage moves here are automating your flows and targeting them properly — we go deeper in our guides on ecommerce email automation and email segmentation for higher engagement.
