E commerce email is the email an online store sends to help people shop, receive orders, manage accounts, and hear about relevant offers. It includes transactional messages such as order confirmations and shipping updates, plus marketing campaigns such as product launches, abandoned-cart reminders, and post-purchase recommendations. Strong e commerce email is timely, expected, authenticated, and useful—qualities that improve both customer experience and inbox placement.

What E Commerce Means in Email Sending

In an email and deliverability context, e commerce refers to the commercial relationship between an online seller and its customers, expressed through messages that support a purchase or encourage a future one. The term is broader than a promotional newsletter. It covers the entire email program around a digital storefront: the message that confirms payment, the notice that a package shipped, the request for a review, the reminder about items left in a cart, and the sale announcement sent to opted-in subscribers.

E commerce email usually falls into two operational categories:

Transactional email: Messages triggered by a customer action or account event. Examples include receipts, password resets, order confirmations, refund notices, delivery updates, and back-in-stock alerts the shopper requested.
Marketing email: Messages intended primarily to promote products, build demand, or bring a shopper back to the store. Examples include newsletters, seasonal campaigns, replenishment reminders, browse-abandonment messages, loyalty updates, and win-back campaigns.

The categories can overlap in a customer’s inbox, but they should not be treated identically. An order confirmation may be expected immediately after checkout and is often essential to the purchase experience. A discount campaign is optional, depends on marketing consent and relevance, and needs a clear way to opt out. Both affect a sender’s reputation because mailbox providers and recipients see the overall pattern of mail associated with a domain.

E commerce is not itself a rate or a single deliverability metric. You do not calculate an “e commerce score” by dividing one number by another. Instead, it is a use case whose success is measured through a group of delivery, engagement, conversion, and retention indicators. The practical question is not simply, “Did we send an email?” It is, “Did the right customer receive a wanted message at the right time, and did it make the next step easier?”

Why E Commerce Email Matters for Deliverability

Email is unusually important in e commerce because it connects a store to customers after they leave the website. A paid ad ends when the click ends; an email address, when collected with permission and used responsibly, gives the business a direct way to send purchase-critical information and relevant follow-up.

That direct channel also creates a deliverability responsibility. Mailbox providers evaluate whether messages appear wanted and trustworthy. A program that sends irrelevant promotions, keeps mailing inactive addresses, hides the unsubscribe option, or has inconsistent sending patterns can earn spam complaints and weaker placement. A program that sends expected receipts, honors preferences, authenticates its domain, and limits promotions to engaged subscribers gives recipients fewer reasons to ignore or report its mail.

The impact extends beyond the marketing team. If a customer misses an order confirmation, they may contact support, believe the order failed, or place a duplicate order. If shipment updates land in spam, the customer may blame the store rather than the mailbox provider. If abandoned-cart email is late or sent too frequently, it can feel intrusive instead of helpful. Deliverability therefore affects support volume, conversion, repeat purchase behavior, customer lifetime value, and brand trust.

For higher-volume senders, basic sending hygiene is also increasingly tied to mailbox-provider requirements. Gmail’s sender guidelines apply requirements around authentication, spam rates, and unsubscribing for relevant senders, while Yahoo emphasizes timely, relevant mail to active and engaged audiences. These policies make the distinction between responsible e commerce communication and indiscriminate bulk mail operationally important, not merely a matter of style.

E commerce email has two different jobs

A healthy e commerce program generally has to do two jobs at once:

Protect the customer experience. Send order and account messages reliably, promptly, and in a recognizable format.
Create incremental revenue. Send promotions and automated lifecycle messages that make shopping easier without exhausting the audience.

When those jobs are mixed carelessly, the business can harm both. For example, putting a major promotional block into every receipt may cause essential order messages to feel like advertising. Sending every marketing campaign from the same identity as receipts may make it harder to understand whether a reputation problem is tied to promotional content, a specific audience, or a technical configuration.

The Main Types of E Commerce Email

E commerce email performs best when messages are designed around the customer journey rather than around a generic campaign calendar. Each message should have a clear trigger, a clear audience, and a clear next action.

Purchase and account messages

These messages are usually initiated by a concrete event. The customer expects them, so timing and accuracy matter more than creative novelty.

Common examples include:

Account verification and password-reset messages
Order confirmations and digital receipts
Payment-failed or payment-refund notifications
Shipping confirmations, delivery updates, and delay notices
Subscription or membership renewal notices
Product-return instructions and return-status updates
Account-security alerts

The best version of each message answers the customer’s immediate question. An order confirmation should identify the order, list the purchased items, state the amount paid, show the delivery address when appropriate, and provide a clear path to support. A shipment update should include a tracking link and an understandable delivery status. These messages should not force a customer to search a website for basic information they reasonably expect in the email.

Lifecycle and behavioral messages

Lifecycle email responds to behavior or a stage in the buying relationship. It is often automated, but automation does not make it automatically relevant. The trigger must reflect a meaningful customer signal, and frequency controls must prevent multiple flows from colliding.

Examples include a welcome series after subscription, browse-abandonment reminders, cart-abandonment reminders, back-in-stock notices, price-drop alerts, replenishment messages, post-purchase education, review requests, and win-back campaigns. These are commercial messages, even when they are helpful, so they need consent handling and an easy opt-out route appropriate to the applicable rules and recipient expectations.

A good abandoned-cart program illustrates the difference between relevance and volume. If someone adds a product to a cart but completes checkout minutes later, a reminder should be suppressed. If they abandon the cart, one well-timed message with the item, price, and a direct return link may be useful. Repeated messages over several days, especially after the product has gone out of stock or the person has already purchased it elsewhere, are more likely to create annoyance than revenue.

Broadcast campaigns

Broadcasts are messages sent to a broader segment: a new collection, holiday offer, sale, editorial roundup, or loyalty event. These messages create the greatest deliverability risk when sent indiscriminately because they are easy to scale and easy to over-send.

The answer is not necessarily to avoid campaigns. It is to target them deliberately. Segment by recent engagement, product category interest, purchase history, geography, inventory availability, loyalty status, or stated preferences. A customer who bought running shoes may welcome a replenishment or related-accessories campaign; that does not mean they want every apparel promotion the brand sends.

How E Commerce Email Influences Inbox Placement

Mailbox providers do not judge a message solely by whether it contains a discount code or a product image. They use a combination of technical identity, sending behavior, recipient signals, and content context. Exact filtering systems are private and change over time, but the operational principle is stable: wanted, authenticated, consistently sent email has a stronger foundation than mail that looks unexpected or hard to stop.

Authentication establishes identity

Every serious e commerce sender should authenticate its sending domain with SPF, DKIM, and DMARC.

SPF authorizes specific sending infrastructure to send mail for a domain used in the envelope sender or return path.
DKIM adds a cryptographic signature that lets a recipient server verify that signed parts of the message were not altered and that the signer is authorized for its domain.
DMARC publishes a policy and alignment framework that tells receiving systems how to evaluate SPF and DKIM in relation to the visible From domain.

Authentication does not guarantee inbox placement, but it is foundational. It reduces spoofing risk, helps mailbox providers connect mail to a responsible domain, and is required or expected for many sending situations. For marketing traffic, use a visible From identity that customers recognize and that aligns with the brand they subscribed to hear from.

A simplified DMARC record might look like this:

_dmarc.example-store.com TXT "v=DMARC1; p=none; rua=mailto:dmarc-reports@example-store.com; adkim=s; aspf=s"

This is only an illustrative record, not a copy-and-paste production configuration. A real policy should be planned around the domains and vendors that send mail for the business, and DMARC reporting should be reviewed before moving from monitoring to stricter enforcement. For implementation details, use your provider’s email API setup guides alongside your DNS administrator’s process.

Engagement reflects whether mail is wanted

Recipients influence deliverability through their actions. Opens are no longer a complete or consistently observable measure because privacy features and image loading can distort them. Still, positive actions such as reading, replying where appropriate, moving mail to the inbox, saving a message, and clicking a useful link can indicate interest. Negative actions—deleting without reading, unsubscribing, marking as spam, or repeatedly ignoring mail—can indicate the opposite.

For e commerce senders, the useful lesson is to optimize for customer value rather than chase a single engagement percentage. A shipping notification may receive few clicks because it already answers the customer’s question. That does not make it unsuccessful. A sale email may receive many opens but few purchases, suggesting an attractive subject line paired with an offer, landing page, audience, or inventory problem. Read metrics in the context of the message’s job.

Consistency makes reputation easier to manage

A store that sends predictable volumes to a permission-based audience creates a clearer behavioral history than one that sends nothing for months and then sends a huge campaign to every address it has ever collected. Sudden volume spikes, list imports of uncertain origin, and rapid changes in the type of content sent can all create risk.

This matters during seasonal peaks. Black Friday, holiday shipping deadlines, product drops, and flash sales may require more mail, but the safest preparation happens before the peak. Build engagement steadily, confirm that authentication is working, suppress invalid addresses, and ramp segments in a controlled way rather than treating a major retail event as a reason to mail dormant subscribers all at once.

E Commerce Email Metrics That Matter

Because e commerce is a use case rather than a metric, measure it with a balanced scorecard. Delivery data tells you whether receiving servers accepted mail. Engagement tells you whether recipients found it useful. Commerce data tells you whether messages contributed to orders without causing long-term audience damage.

Delivery and list-health metrics

Start with metrics that show whether your mail can reliably reach recipient servers:

Delivery rate: delivered or accepted messages divided by messages sent, depending on how the sending system defines delivery.
Hard-bounce rate: permanent delivery failures divided by messages sent or attempted.
Soft-bounce rate: temporary failures divided by messages sent or attempted.
Complaint rate: spam complaints divided by delivered messages, commonly expressed as a percentage.
Unsubscribe rate: unsubscribes divided by delivered messages for a campaign or time period.
Deferred rate: messages delayed by the receiving server divided by attempted messages.

Definitions vary among platforms, particularly for “delivered.” An SMTP provider may report acceptance by the recipient server, while it cannot always prove that the message reached the inbox rather than spam. Compare trends using consistent definitions, and do not treat delivery rate as the same thing as inbox placement.

Campaign and revenue metrics

Then evaluate whether the program is commercially effective:

Click rate and click-to-open rate, with care around open-data limitations
Conversion rate from email click to completed purchase
Revenue per delivered email
Average order value from email-attributed orders
Repeat-purchase rate for customers who receive a lifecycle flow
Cart-recovery rate for abandoned-cart messages
Time from subscription to first purchase
Customer lifetime value by acquisition source or email-engagement cohort

No single metric can decide whether a campaign was good. A campaign with low unsubscribe volume but near-zero clicks may be harmless yet ineffective. A campaign with high immediate revenue but elevated complaints may be profitable this week and damaging next month. The goal is durable revenue from an audience that continues to want the brand’s messages.

Measure transactional and marketing streams separately

Keep reporting separate where possible. Transactional mail often has extremely high expectedness and is judged by speed, reliability, support deflection, and completion of an account or purchase task. Marketing mail is judged more heavily by engagement, unsubscribes, complaints, conversion, and revenue.

Separate streams also make troubleshooting clearer. If password resets are delayed, investigate the sending path, API call, queue, template logic, and recipient-server response. If promotional campaigns land in spam, investigate consent, segmentation, content, authentication alignment, complaint trends, volume, and list age. Combining all traffic into one aggregate rate can hide the actual problem.

Worked Example: Measuring a Cart-Recovery Campaign

E commerce itself is not a calculation, but individual e commerce email metrics are. Consider a cart-recovery campaign sent to 20,000 subscribers who left an item in their cart and had not completed a purchase before the configured delay.

During the send:

20,000 messages are attempted.
19,600 are accepted by recipient servers.
240 messages hard bounce because the addresses do not exist or are otherwise permanently undeliverable.
160 messages are temporarily deferred or soft bounce during the reporting window.
1,176 recipients click the return-to-cart link.
141 recipients complete a purchase attributed to the email.
35 recipients unsubscribe.
18 recipients mark the message as spam.

The hard-bounce rate is:

hard bounces / messages attempted × 100
240 / 20,000 × 100 = 1.2%

The click rate, using accepted messages as the denominator, is:

unique clicks / delivered messages × 100
1,176 / 19,600 × 100 = 6.0%

The email conversion rate, using unique clicks as the denominator, is:

purchases / unique clicks × 100
141 / 1,176 × 100 = 12.0%

The unsubscribe rate is:

unsubscribes / delivered messages × 100
35 / 19,600 × 100 ≈ 0.18%

And the complaint rate is:

spam complaints / delivered messages × 100
18 / 19,600 × 100 ≈ 0.09%

These numbers cannot be interpreted in isolation. A 6.0% click rate may be excellent or weak depending on the store, audience, offer, timing, and prior campaign history. But the calculation gives the team a common language. If the next version produces similar revenue but cuts complaints and unsubscribes, it is likely an improvement. If it raises short-term conversions by sending three additional reminders but doubles complaints, the long-term deliverability cost may outweigh the gain.

Common E Commerce Email Problems and Their Causes

The most damaging e commerce email problems usually come from a mismatch between what the sender wants to send and what the recipient expected to receive. Technical failures matter, but relevance and permission are often the root cause of ongoing reputation issues.

High hard-bounce rates

Hard bounces commonly result from nonexistent addresses, malformed addresses, old lists, typos at signup, or addresses collected without a reliable confirmation process. Continuing to mail permanent failures wastes volume and signals weak list maintenance.

Fix the underlying collection path, not just the symptom. Validate fields in checkout and signup forms, remove hard-bounced addresses promptly, investigate sudden bounce spikes by source, and avoid purchasing lists. A free email address verification tool can be useful before a large import or reactivation campaign, but verification should complement—not replace—permission-based collection and ongoing bounce suppression.

Spam complaints

A spam complaint means a recipient used their mailbox interface to say they did not want the message. A complaint is not always proof of malicious sending; people may forget subscribing, dislike the frequency, or use the spam button because it is more visible than an unsubscribe link. But complaints should always be treated as a meaningful warning.

Common causes include vague signup language, confusing brand identity, too many messages, irrelevant recommendations, sending promotions after a customer opted out, mailing inactive subscribers for too long, and surprise messages after an offline purchase. Reduce complaints by setting expectations at collection, using a recognizable From name and domain, segmenting by engagement, honoring suppression immediately, and making unsubscribing uncomplicated.

Low engagement and declining conversion

Low engagement can indicate weak subject lines, stale creative, poor offer fit, or a landing-page problem. It can also mean the audience is exhausted. Sending more often to solve low engagement usually makes the problem worse if the true issue is irrelevant targeting.

Look at the full funnel. Are customers clicking but abandoning on a slow product page? Are mobile recipients receiving a design that is difficult to use? Is the offer expired when the email arrives? Is the recommended item already purchased or unavailable? E commerce email needs clean data flows between the storefront, inventory system, customer database, and sending platform; otherwise, even polished creative can deliver a broken experience.

Authentication failures and domain misalignment

An authentication failure can happen when mail is sent through a new vendor without updating SPF or DKIM, when the visible From domain does not align with authenticated identities, or when a DNS record is incorrectly formatted. Symptoms may include blocks, spam placement, or error responses from recipient servers.

Maintain an inventory of every system that sends as your domain: transactional provider, marketing platform, customer-support tool, help desk, billing system, survey tool, and internal alert service. Every new sender should be reviewed before launch. The most common mistake is treating email authentication as a one-time setup rather than an ongoing operational control.

Message collisions

A customer can receive an order confirmation, a shipping update, a post-purchase cross-sell, a cart reminder from another browsing session, and a broad sale campaign in a single day. Every workflow may be logical by itself, but the combined experience can feel chaotic.

Use frequency caps and priority rules. Transactional messages should generally take priority because they communicate customer-requested information. Marketing automation should suppress a person after conversion where appropriate and should coordinate with campaign calendars. Build exclusions into the logic before a large send, not after customers complain.

How to Improve E Commerce Email Performance

Improvement begins with a disciplined operating model. Do not start by changing subject lines or adding another automation. First ensure that the program has permission, identity, data quality, and a way to learn from results.

1. Define each message’s purpose and trigger

Document every email stream: what event triggers it, who receives it, the expected delivery window, the owner, the sending domain, the unsubscribe or preference treatment, and the success metric. If a message has no clear purpose beyond “we have not emailed this audience lately,” it is a candidate for redesign or removal.

For instance, a shipment notice might be triggered by a fulfillment-system event and must send within minutes. A replenishment reminder might be triggered by a product’s expected usage cycle, but should only send if the customer has not already reordered. A welcome series might begin at subscription but should stop or change once the person purchases.

2. Collect permission with clear expectations

Tell people what they are signing up for. If the signup form says “Get 15% off,” but not that the person will receive regular product marketing, complaints become more likely. Describe the value and approximate type of communication: early access, product news, replenishment alerts, or occasional offers.

Keep evidence of consent, including the source, timestamp, form or checkout flow, and permission language used at collection. This is useful for operational troubleshooting as well as compliance. Do not assume that an email address obtained in one context automatically supports every kind of promotional message.

3. Segment before sending

Segmentation is one of the most practical deliverability controls. Start broad only when the audience is genuinely broad. Otherwise, use available signals to decide who should receive a campaign.

Useful segmentation dimensions include:

Recent purchasers versus non-purchasers
Customers by product category or brand affinity
Subscribers active in the past 30, 60, or 90 days
Loyalty tier or purchase frequency
Geography, language, and shipping eligibility
Inventory availability and local fulfillment constraints
New subscribers, lapsed customers, and high-value customers
Customers who have already received a conflicting automated message

An engaged segment may be appropriate for a new-product announcement. A long-inactive segment deserves a separate re-permission or win-back strategy, with lower volume and a clear suppression rule if people do not respond. Do not let an old list become the default audience simply because it is large.

4. Build reliable suppression logic

Suppress people who hard bounce, unsubscribe, complain, have a pending purchase that makes a reminder irrelevant, or are in a customer-support situation where promotional mail could be poorly timed. Maintain a global suppression list that applies across systems when legally and operationally appropriate.

A suppression system is especially important when different teams use separate tools. A customer who opts out through a marketing platform should not continue receiving the same promotions through a different campaign tool. Likewise, a refund or delivery-delay event may warrant a temporary pause on aggressive cross-sell messaging.

5. Test one meaningful variable at a time

A/B testing is useful when it answers a decision. Test a subject line, send time, offer framing, audience segment, message frequency, product recommendation model, or landing-page path. Avoid changing all variables simultaneously; otherwise, the result may be impossible to interpret.

Use guardrail metrics alongside conversion. A version that increases revenue per recipient but also increases complaints, unsubscribes, or bounce rates is not automatically the winner. Evaluate results over enough volume and time to account for delayed purchases and post-campaign effects.

6. Monitor by domain, stream, and cohort

Review performance separately for transactional and promotional mail, as well as by sender domain, mail type, acquisition source, and engagement cohort. A strong overall dashboard can conceal a deteriorating segment. For example, welcome emails may perform well while reactivation campaigns produce nearly all complaints.

Google’s Postmaster Tools provides domain-level diagnostics such as spam-rate, reputation, authentication, and delivery-error information for eligible traffic. Combine mailbox-provider visibility with your own sending logs, bounce events, unsubscribe records, web analytics, and order data. The objective is not to collect dashboards; it is to find a change quickly enough to act on it.

Technical Practices for E Commerce Senders

E commerce email relies on software integrations, so technical details can affect the customer experience directly. An API request that succeeds but sends the wrong template, a webhook that is not processed, or an idempotency failure that duplicates receipts can be as damaging as a poor campaign strategy.

Use event-driven transactional sending

Connect critical messages to authoritative business events: payment captured, order created, fulfillment completed, refund issued, password reset requested, or subscription renewed. Avoid relying on periodic batch exports for customer-critical notifications when a real-time event is available.

Design for retries and idempotency. If your commerce backend retries a request after a timeout, the email service should not send a second order confirmation for the same event. Store a stable event or order identifier, log the response, and make duplicate prevention explicit in the workflow.

Keep templates data-safe

Template data should be validated before rendering. Product names may contain unusual characters, addresses have multiple formats, and optional fields can be absent. Confirm that conditional content does not expose internal fields or leave broken placeholders such as {{tracking_url}} in a live message.

Use a plain-text alternative alongside HTML email, descriptive link text, and a mobile-friendly layout. Avoid depending on an image to convey the only important detail, such as a discount code, delivery date, or call to action. Accessibility and deliverability are not identical disciplines, but clear structure, readable text, and an understandable message help both recipients and support teams.

Implement unsubscribe headers correctly

Marketing email should include a visible unsubscribe mechanism in the message body. For many bulk-sending contexts, senders should also support list-unsubscribe headers. The one-click convention defined by RFC 8058 uses List-Unsubscribe with List-Unsubscribe-Post rather than treating a simple GET request as an unsubscribe action.

An illustrative header pair is:

List-Unsubscribe: <https://email.example-store.com/unsubscribe/abc123>
List-Unsubscribe-Post: List-Unsubscribe=One-Click

The endpoint must process a compliant unsubscribe request safely and should not require the recipient to sign in, complete a survey, or navigate through multiple screens before suppression. Keep the visible footer link too; inbox interfaces and recipient preferences vary.

Compliance and Customer Trust

E commerce email operates across legal jurisdictions, so a specific program should be reviewed against the laws that apply to the business and recipients. In the United States, the CAN-SPAM Act establishes requirements for commercial email, including truthful header information and subject lines, a clear opt-out mechanism, and honoring opt-out requests. Other regimes can impose different consent, disclosure, and data-handling requirements.

Compliance is the minimum; customer trust is the operating standard. A message can technically include an unsubscribe link while still making it difficult to find. A store can technically obtain an address during checkout while still surprising the customer with high-frequency promotional mail. Better programs explain what subscribers will receive, use their data in ways that make sense in the context collected, and allow people to reduce frequency or choose categories rather than forcing an all-or-nothing choice.

Preference centers can help when they are simple and meaningful. Let subscribers choose product categories, message frequency, location-specific updates, or whether they want promotional mail versus product-availability alerts. Do not use a preference center as an obstacle course. Its purpose is to retain consent by giving people control, not to make leaving harder.

A Practical E Commerce Email Audit Checklist

Use this checklist before a major campaign, platform migration, or seasonal peak:

Confirm SPF, DKIM, and DMARC are configured for every sending domain and current sending provider.
Verify that the visible From name and From domain are recognizable to customers and consistent with signup expectations.
Separate transactional and marketing reporting, templates, and operational ownership where practical.
Check hard-bounce suppression and unsubscribe suppression before every major send.
Review audience source, age, consent language, and recent engagement before including a segment.
Confirm that automated flows stop or change after the relevant conversion, such as an order or subscription cancellation.
Test messages on mobile devices and verify key links, prices, inventory references, and tracking URLs.
Ensure marketing messages include a visible unsubscribe link and appropriate list-unsubscribe headers.
Set frequency caps and campaign exclusions so overlapping flows do not overwhelm customers.
Monitor bounces, deferrals, complaints, unsubscribes, clicks, conversion, and revenue after deployment.
Investigate abnormal changes by domain, audience segment, acquisition source, and message type rather than relying only on account-wide averages.
Record what changed—audience, content, offer, timing, infrastructure, or templates—so performance shifts can be diagnosed later.

The Bottom Line

E commerce email is the system of messages that helps an online store serve customers and generate repeat revenue before, during, and after a purchase. Its deliverability is not determined by a single dashboard number or a clever subject line. It comes from recognizable identity, reliable technical setup, permission-based list growth, relevant targeting, useful timing, clean data, and rapid suppression of people who should no longer receive a message.

The most sustainable approach is customer-centered: make receipts reliable, make promotions relevant, make preferences easy to manage, and treat negative signals as feedback rather than as an inconvenience. When email consistently helps customers complete a task or discover a product they genuinely want, campaign performance and deliverability reinforce each other.

FAQ

Is e commerce email the same as email marketing?

No. Email marketing is one part of e commerce email. E commerce email also includes transactional and service messages such as order confirmations, receipts, shipping updates, refund notices, password resets, and account alerts.

Is e commerce a deliverability metric?

No. E commerce is a business and sending use case, not a rate. Measure its email performance with metrics such as hard-bounce rate, complaint rate, unsubscribe rate, clicks, conversion rate, revenue per delivered email, and repeat purchase behavior.

Should transactional and promotional e commerce emails use the same sending domain?

They can use related branded domains, but the important requirements are clear customer recognition, correct authentication, and separate monitoring of transactional and promotional traffic. Keeping message streams distinct can make reputation analysis and incident response easier.

How often should an online store send promotional email?

There is no universal number. Frequency should reflect the subscriber’s expectations, engagement, product purchase cycle, and message value. Start with a deliberate cadence, use frequency caps, segment by engagement, and reduce or pause mail to people who stop responding.

Why do cart-abandonment emails sometimes hurt deliverability?

They can hurt when triggers are inaccurate, reminders continue after purchase, frequency is excessive, or shoppers did not expect that follow-up. Use reliable event data, suppress purchasers quickly, limit reminders, and send only to audiences with an appropriate relationship and permission basis.

E Commerce Email: Deliverability and Campaign Performance Guide