Email Marketing for Online Stores: The Emails That Make Money

The essential emails for Shopify, WooCommerce and other online stores: welcome offers, abandoned carts, post-purchase flows, launches and win-backs.

In short: Set up welcome, abandoned cart, post-purchase and win-back automations first, then send a steady rhythm of new arrivals, guides and occasional offers. Treat order and shipping emails as part of the experience, and watch revenue per email rather than opens.

For an online store, email is often the most profitable marketing channel you have: no cost per click, and you're talking to people who already know your brand. The trick is to combine a handful of automations that sell every day with regular campaigns that keep customers coming back.

The automations to set up first

Welcome series — a first-order offer and your bestsellers (templates).
Abandoned cart — remind shoppers who left items behind (how to).
Post-purchase — thank you, delivery info, care tips, then a review request.
Replenishment — for products that run out (coffee, skincare, pet food), a reminder when it's time to reorder.
Win-back — customers who haven't bought in a while (guide).

These run in the background and typically drive a large share of email revenue.

Campaigns that keep sales flowing

New arrivals and launches — with a sneak peek for subscribers first.
Bestsellers and staff picks.
Back in stock — for items people asked about.
Seasonal sales — plan them in advance (holiday email calendar).
Content — how to use, style or care for your products. Not every email needs a discount.

Grow your list on every page

A pop-up with a first-order offer (shown after some scrolling, not instantly).
A footer sign-up.
An opt-in at checkout (unticked by default).

Use your customer data

Segment by:

Customers vs never purchased.
What they bought (send relevant products).
How much and how often (VIPs get early access).
Last purchase date (time-based win-backs).

Don't train customers to wait for discounts

If every email is 20% off, people stop paying full price. Mix offers with launches, stories, guides and early access.

Watch the right numbers

Revenue per email, conversion rate and repeat purchase rate matter more than opens. See the metrics that matter.

A sample post-purchase series

Right after the order: "Thanks for your order! Here's what happens next" — delivery times and a link to track it.
When it arrives (a few days later): "Getting the most from your [product]" — care tips, a how-to video, sizing or usage help.
About two weeks later: "How are you finding it?" — a review request with a direct link.
When it's likely running out (consumables): "Time to restock?" — one-click reorder.
A month or two later: "You might also like" — two or three related products, chosen from what they bought.

A simple weekly campaign rhythm

Monday or Tuesday: a new arrival, collection or story.
Thursday: a guide, style idea or customer spotlight.
Occasional weekends: a seasonal offer or limited edition.

Mix selling with helping, and you'll avoid the "every email is a discount" trap.

Quick wins for small stores

Add a first-order offer pop-up and a footer sign-up today.
Turn on the welcome series and abandoned cart reminders first — they run every day.
Write a "back in stock" email template so you can send it in minutes.
Ask every happy customer for a review a couple of weeks after delivery.

Order and shipping emails: your most-opened messages

Order confirmations, shipping updates and delivery notices are opened far more often than marketing emails, because customers want them. Treat them as part of the shopping experience:

Make them clear first: order number, items, total, delivery address and expected delivery date at the top.
Use your branding — the same logo, colours and tone as your store.
Add helpful extras: care instructions, sizing tips, how to contact you, how returns work.
Keep promotions light. A small "you might also like" section is fine; a full sale banner can make a receipt feel like spam.

The legal difference

Transactional emails (receipts, shipping updates, account notices) aren't treated like marketing in most cases. In the US, CAN-SPAM's main requirements don't apply to messages whose primary purpose is transactional, as long as the header information is accurate. In Canada, CASL exempts several transactional messages (for example confirming a transaction or providing delivery information) from the consent requirement, although they still need your identification and an unsubscribe mechanism if they include commercial content. Once a message is mainly promotional, the full rules apply.

Recommendations that don't feel creepy

Product recommendations work best when they're obviously helpful: "complete the look", "customers who bought this also liked", or a refill reminder timed to how long a product usually lasts. Avoid emails that reveal more about someone's browsing than they'd expect, and never include sensitive categories in subject lines.

In Reepio

Send purchases and cart events to Reepio through the REST API or a no-code tool like Zapier, then use them as automation triggers and segment conditions. Campaign reports track clicks and revenue, and the AI writer drafts product emails in your brand voice — without inventing claims about your products. Start free.

Frequently asked questions

Which ecommerce email makes the most money?

Automated emails like welcome series, abandoned cart reminders and post-purchase follow-ups are often among the most profitable, because they reach shoppers at high-intent moments.

How often should an online store email customers?

Many stores send one to two campaigns a week plus automations. Watch unsubscribes and clicks to find what your customers welcome.

How do I connect my store to Reepio?

Send customers, purchases and cart events through Reepio’s REST API or a no-code tool like Zapier, then use them as automation triggers and segment conditions.