How to Start a Newsletter for Your Ecommerce Store

Key Takeaways
- •Acquiring an ecommerce customer costs more than the margin on their first order, and email is how the second order happens
- •Authenticate your domain with SPF, DKIM and DMARC before anything else, since content is irrelevant if messages are filtered
- •Five automated flows produce most of the revenue, and they run once and pay indefinitely
- •Abandoned cart is the single highest-revenue flow in most stores
- •A list that receives only discounts trains customers to wait for discounts and stops opening between them
Email is the only ecommerce channel you own. Advertising costs rise, algorithms change, marketplaces alter their terms, and a customer list keeps working through all of it. For a store, that makes email the difference between renting your demand and owning it.
It is also where the profit is, because the first order rarely covers the cost of acquiring the customer.
Why it matters more for a store than for a creator
The unit economics are the argument. Acquiring an ecommerce customer typically costs more than the margin on their first purchase. The business is the second and third order.
Email is how the second order happens. Without it, every sale requires buying the customer again.
Get deliverability right first
None of the content matters if the messages are filtered.
Authenticate your domain. SPF, DKIM and DMARC. Major providers increasingly reject or filter bulk mail without them, and most small stores have never set them up. This is the highest-priority task here.
Send from your own domain, not a free consumer address.
Warm up gradually if the domain is new.
Never import a list you did not collect.
Building the list
On site:
- A visible signup with a specific reason attached. "Get ten percent off your first order" outperforms "join our newsletter" substantially.
- Placement matters: inline within product and content pages beats a footer.
- Post-purchase, capture the address and ask permission for marketing separately, since an order confirmation is not marketing consent.
Off site:
- Packaging inserts, which convert unusually well because the customer is holding the product.
- Social, where every post should have a path to the list.
- Content that answers the questions your buyers have before they buy.
What to avoid: aggressive full-screen popups on mobile, which damage conversion and search performance more than they help list growth.
The five automated flows that produce most of the revenue
Automated flows outperform broadcast campaigns substantially in ecommerce, because they arrive at the moment of relevance.
1. Welcome
Triggered on signup. Deliver the promised incentive immediately, then introduce what you sell and why, over two or three messages. The highest engagement any subscriber will ever have with you.
2. Abandoned cart
The single highest-revenue flow in most stores. Someone added something and left.
Three messages: a reminder within a few hours, a second within a day addressing the likely objection such as shipping cost or sizing, and a third with a modest incentive if your margins allow. Include the actual items, with images.
3. Abandoned browse
Someone viewed a product repeatedly and did not add it. Lower volume than cart abandonment and still meaningful.
4. Post-purchase
Confirmation, shipping updates, then a follow-up asking how it went and requesting a review. This flow drives repeat purchase and reviews, both of which compound.
5. Win-back
Triggered on a period of inactivity based on your typical repurchase cycle. Cheaper than acquiring a new customer by a wide margin.
Set these up before spending time on campaigns. They run once and produce revenue indefinitely.
Campaigns worth sending
- New arrivals, which is the main reason a boutique customer returns.
- Genuinely useful content related to what you sell: how to choose, how to care for it, how to use it.
- Customer stories and photographs, which are the most effective product marketing you have and cost nothing but asking.
- Restocks, particularly for items that sold out.
- Seasonal, tied to real moments rather than manufactured ones.
What to avoid: sending only promotions. A list that receives nothing but discounts trains customers to wait for discounts, and stops opening between them.
Segmentation that is worth the effort
Start with three:
- Never purchased. Different message from customers.
- Purchased once. The most valuable segment, because moving them to a second order is where the profit is.
- Repeat customers. Deserve early access and better treatment rather than the same discount everyone gets.
Beyond those, segment on category interest based on what people actually viewed and bought. That is where the relevance gains are.
Frequency
Ecommerce lists tolerate more frequency than creator newsletters, because the content is genuinely relevant to a purchase intent. Weekly is a reasonable baseline for most stores.
Watch unsubscribe rate and complaint rate rather than guessing. Rising complaints mean you are sending too much or to people who did not really opt in.
List hygiene
An inactive subscriber costs you twice: on your platform tier and on deliverability, since low engagement pushes future sends toward spam.
Suppress non-openers after around six months following one re-engagement attempt, remove hard bounces immediately, and make unsubscribing easy, because someone who cannot find the link marks you as spam instead.
Measuring it properly
- Revenue per email sent, which is the number that matters.
- Revenue per subscriber per month, which tells you what a subscriber is worth and therefore what you can spend to acquire one.
- Flow revenue versus campaign revenue. In most stores the flows produce more with a fraction of the effort, and the split tells you where to invest.
- Repeat purchase rate among subscribers versus non-subscribers, which is the clearest evidence of whether the list is working.
Open rate is now unreliable because of privacy features. Use it for trend only.
Compliance
Order confirmations are transactional. Marketing is not, and it requires consent, particularly in the EU and UK where you must be able to show when and how it was given. Every commercial message needs your real business name, a physical address and a working unsubscribe.
For the general mechanics, the complete guide to email marketing covers sequences and deliverability in more depth, and how to start an affiliate program covers the other channel where you pay only on results.
Written by Lena Whitfield
Lena is a growth strategist at Affiliateo. She specializes in community building and digital product launches.


