The Complete Ecommerce Email & SMS Marketing System

Most ecommerce brands don't have an email and SMS system. They have disconnected tactics.

A strong ecommerce email and SMS program comes down to four things: deliverability, list growth, automations and campaigns.

Together, these four components create a retention system that captures more visitors, converts more subscribers and keeps customers engaged after purchase.

We've applied versions of this framework across 150+ ecommerce brands and more than $300M in attributed revenue across email, SMS and retention channels.

The important part isn't any individual tactic. It's how the pieces reinforce each other.

1. 1Deliverability: your messages need to reach the inbox.
2. 2List growth: you need a consistent stream of qualified subscribers.
3. 3Automations: customer behavior should trigger the right message at the right time.
4. 4Campaigns: you need consistent reasons to stay in front of your audience.

1. Start With Email Deliverability

Email deliverability determines whether the rest of your email strategy gets a chance to work.

If your emails aren't reaching the inbox, better copy, prettier design and additional automations won't solve the underlying problem.

There are four areas we pay particular attention to.

Get the technical setup right

At a minimum, ecommerce brands should have their sending infrastructure configured properly, including:

• a branded sending domain;
• SPF;
• DKIM;
• DMARC;
• appropriate DNS configuration.

This isn't the exciting part of email marketing, but it removes avoidable technical problems before you start optimizing anything else.

Send emails people actually want

Mailbox providers receive engagement signals from the people receiving your messages.

If subscribers consistently engage with your emails, that's a positive signal.

If they ignore them, delete them or report them as spam, that's not.

That's one reason constantly sending another discount isn't a sustainable strategy. You can train subscribers to stop paying attention unless you're offering money off.

Your campaign mix should give customers reasons to engage even when there isn't a sale happening.

Keep your list healthy

A large email list isn't automatically a valuable email list.

If a significant percentage of subscribers haven't engaged for months, continuing to send every campaign to them can hurt overall performance and increase your ESP costs.

List hygiene should therefore be ongoing.

That can include suppressing or removing profiles that consistently show no engagement, managing bounces and complaints, and avoiding the temptation to judge the health of your email program by subscriber count alone.

Build sender reputation gradually

When a brand is struggling with deliverability, we usually wouldn't start by blasting the entire database.

A better approach is to begin with your most engaged audience and expand gradually as engagement improves.

For example:

1. 1Start with recently engaged subscribers.
2. 2Establish consistently healthy engagement.
3. 3Expand the sending window.
4. 4Continue monitoring performance as you increase reach.

The exact segmentation depends on the account, but the principle is simple:

Earn the ability to reach more of your list rather than assuming every subscriber should receive every campaign.

2. Turn More Website Visitors Into Subscribers

List growth gives you a way to continue the relationship with visitors who aren't ready to buy during their first session.

Most ecommerce visitors aren't going to purchase on their first visit.

That makes list growth one of the highest-leverage parts of a retention program.

If someone leaves without buying and without giving you a way to contact them, your options for bringing them back become much more limited.

A strong signup experience gives you another opportunity to continue the relationship.

Don't start with the form. Start with the offer.

Before changing fonts, colors or popup timing, ask a much simpler question:

Would someone actually want what we're offering in exchange for their email address?

The offer does not always have to be a straightforward percentage discount.

Depending on the brand, you can test:

• mystery offers;
• early access;
• product recommendations;
• quizzes;
• giveaways;
• educational incentives;
• exclusive drops.

One approach we've seen work particularly well is combining a mystery offer with a short quiz.

Instead of immediately asking for an email address, the first step asks the visitor a relevant question.

That creates a small commitment and can also capture useful zero-party data.

The next step collects the email address, followed optionally by a phone number for SMS or WhatsApp.

Use the data after you collect it

The value of a quiz isn't just that it can increase form engagement.

It can tell you something useful about the subscriber.

If someone tells you what they're shopping for, what problem they're trying to solve or which category they're most interested in, that information should influence what happens next.

You can use that data to personalize:

• the welcome experience;
• product recommendations;
• segmentation;
• future campaigns;
• SMS or WhatsApp messaging.

That makes list growth part of the customer journey instead of simply a database-building exercise.

Keep testing

Signup forms aren't a set-it-and-forget-it asset.

Test things like:

• offer;
• headline;
• number of steps;
• timing;
• targeting;
• triggers;
• design;
• mobile experience;
• email vs email + phone capture.

The objective isn't simply maximizing signup rate.

You want to increase the number of qualified subscribers who eventually become customers.

That's an important distinction.

3. Build Automations Around Customer Behavior

Ecommerce automations trigger messages based on customer behavior, allowing the brand to respond to intent without waiting for the next campaign.

Examples include someone:

• joining your list;
• visiting your store;
• browsing a product;
• abandoning a cart;
• abandoning checkout;
• placing an order;
• becoming due for replenishment;
• going long enough without purchasing again.

The core ecommerce automations

Our current ecommerce automation framework generally includes:

1. 1Welcome Series
2. 2Site Abandonment
3. 3Browse Abandonment
4. 4Cart Abandonment
5. 5Checkout Abandonment
6. 6Post-Purchase
7. 7Replenishment Reminder
8. 8Customer Winback
9. 9Cross-Sell
10. 10VIP

Not every brand needs the exact same configuration.

A replenishment flow, for example, is far more relevant for a consumable product than for a product customers typically buy once every several years.

The point is not to hit a certain number of flows.

The point is to cover the important moments in the customer lifecycle.

Avoid shallow automations

One of the most common problems we see is a flow that technically exists but contains one or two generic emails.

That isn't much of an automation strategy.

A good flow can:

• build trust;
• overcome objections;
• educate;
• reinforce product benefits;
• provide social proof;
• answer common questions;
• introduce complementary products;
• create an appropriate reason to purchase.

Think about an automation as a salesperson who responds differently depending on what the customer just did.

Prioritize automations by traffic and impact

Don't spend the same amount of optimization effort on every automation.

If thousands of people enter your welcome series every month and only a handful enter a niche cross-sell flow, improving the welcome series is usually going to create more impact.

The same applies within a flow.

Improving email one of a high-volume automation can be much more valuable than obsessing over email five of a sequence almost nobody reaches.

Prioritize based on:

traffic × conversion opportunity × business value.

4. Build a Consistent Campaign Strategy

Campaigns keep your brand relevant between behavioral moments and give subscribers recurring reasons to engage and buy.

For established ecommerce brands, three to four campaigns per week is often a strong starting point.

But it's a starting point, not a rule.

The right cadence depends on:

• list health;
• engagement;
• buying cycle;
• seasonality;
• product assortment;
• available content;
• promotional calendar.

Some brands should send twice a week.

Others can profitably send five times or more.

Frequency should be earned through performance rather than chosen because of an arbitrary benchmark.

Don't make every campaign a promotion

Discounts work.

The problem starts when they become the only reason your customers hear from you.

If every campaign says:

10% off.

then:

15% off.

then:

Last chance for 20% off.

you're teaching customers how your business works.

They learn that another offer is probably coming.

A healthier campaign calendar mixes commercial and non-commercial angles.

That can include:

• product highlights;
• social proof;
• customer stories;
• education;
• buying guides;
• FAQs;
• objection handling;
• brand stories;
• company updates;
• launches;
• restocks;
• promotions.

You're still selling.

You're simply giving people more reasons to pay attention than price alone.

A simple four-campaign weekly structure

One starting calendar could look like this:

Campaign 1: Social proof

Reviews, UGC or customer stories.

Campaign 2: Product focus

One product, benefit, use case or problem.

Campaign 3: Education

A guide, myth, FAQ, comparison or product education.

Campaign 4: Commercial moment

A promotion, launch, restock, deadline or scarcity angle.

You don't need to repeat this exact structure every week.

The important thing is intentionally varying the reason for sending.

Don't automatically email everyone

Campaign segmentation is also part of deliverability.

For many sends, the right audience is an engaged portion of your database rather than every subscriber you've ever collected.

You can periodically test broader audiences when account health supports it, but reach and deliverability have to be balanced.

The goal isn't to make the send count as large as possible.

It's to generate the best long-term result from the audience you've built.

The System Matters More Than Any Individual Tactic

A better popup won't fix terrible deliverability.

More campaigns won't compensate for weak automations.

Twenty flows won't matter if very few qualified people are joining your list.

And great emails won't make much money if every part of the system operates independently.

The four components reinforce one another:

Deliverability → List Growth → Automations → Campaigns

Better list growth gives your automations more qualified traffic.

Better automations convert more of those subscribers into customers.

Campaigns keep the relationship active.

And stronger engagement helps protect the deliverability that makes the entire system possible.

That's what turns email and SMS from a collection of tactics into a retention channel.