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RetentionEmail Marketing

The channel you own.The revenue you keep.

Every rupee and dirham you spend on ads rents attention. Your email list is the one channel you own outright, and for most D2C brands it's sitting there unsegmented, underused, and blasting discounts. We turn it into a revenue engine.

Flows + campaigns + segmentation · Senior operators · Accountable to revenue

Built on the platforms you already run

KlaviyoMailchimpOmnisendPopups & quizzesOptinMonsterTypeform

Your list isn't small. It's ignored.

Most D2C brands treat email as a discount megaphone: one blast to everyone whenever sales dip. Open rates slide, unsubscribes climb, and the brand quietly trains its best customers to wait for coupons.

The real money is in the automations nobody has built: the welcome series that converts first-time browsers, the cart flow that recovers checkouts, the post-purchase sequence that turns one order into three.

A37 runs email the way operators do: flows first, campaigns second, segments always, and every send measured against revenue per recipient, not open rates.

The full email engine, built and run for you.

Lifecycle Flows

  • Welcome series that sells your brand before it sells product
  • Abandoned cart and browse-abandonment recovery
  • Post-purchase: onboarding, cross-sell, review requests
  • Win-back and sunset flows that clean as they convert

Campaigns

  • Weekly campaign calendar planned around launches and seasons
  • Copy and design in your brand voice, every send
  • Festive and sale-period campaign sprints (Diwali, White Friday, Ramadan)
  • Winning ad hooks repurposed into subject lines

Segmentation & Deliverability

  • Segments by CLV, purchase behaviour, and engagement
  • List growth: popups, quizzes, and on-site capture that converts
  • Deliverability hygiene: domain warm-up, DMARC/SPF/DKIM, list cleaning
  • Zero-party data collection baked into every flow

Measurement

  • Revenue per recipient and flow-level revenue attribution
  • Email's share of total revenue tracked monthly
  • A/B tests on subject lines, offers, and send times
  • Monthly report with next month's calendar

Flows beat blasts.

A campaign earns revenue once. A flow earns it every day, from every new customer, without anyone pressing send. That's why we build the automations before we touch the calendar.

Three things operator-run email buys you:

  1. 01

    Revenue that compounds

    Flows work every new subscriber and every new order automatically, so email revenue grows with your list instead of your effort.

  2. 02

    Margin-safe promotions

    Segmented offers mean your loyalists stop getting the discounts they'd have bought without, and your at-risk customers get the nudge they need.

  3. 03

    A channel ads can't touch

    No auction, no CPM inflation, no algorithm change. The list you build this year keeps paying next year.

How an engagement runs.

  1. 1

    Day 0–2

    List & flow audit

    We audit your ESP, flows, segments, and deliverability, and find the revenue leaking out of your funnel today.

  2. 2

    Day 3–7

    Flow architecture

    The core automations are mapped against your catalogue and margins: which flows, what offers, which segments.

  3. 3

    Week 2

    Build & launch

    Flows go live in priority order, cart recovery first, and the first month's campaign calendar is approved in one sitting.

  4. 4

    Weekly

    Send & optimise

    Campaigns ship on calendar. Every send feeds the test log: subject lines, offers, and timing keep sharpening.

  5. 5

    Monthly

    Report & compound

    One report: email revenue, flow performance, list growth, and what next month will do better.

The stack we run it on.

ESPs

KlaviyoMailchimpOmnisend

List Growth

Popups & quizzesOptinMonsterTypeform

Deliverability

Google PostmasterDMARC/SPF/DKIM tooling

Analytics

GA4Looker Studio

Execution Engine

A37 Loop OS

Is this the right fit?

  • You have traffic and orders but email is under 15% of revenue
  • Your 'email strategy' is a discount blast when sales dip
  • You're on Klaviyo or Mailchimp but only the default flows run

When it isn't the right fit

If you also need the acquisition side run for you, Loop Managed includes this engine end-to-end.

Included in Loop Managed, from $499 a month.

From $499/month

As part of Loop Managed

No credit card required · 15 days free · Month-to-month

  • Start with the 15-day free trial: your flow audit and first fixes land inside it.

A37 Loop

Want this plus your whole marketing, on loop?

A37 Loop bundles strategy, content, publishing, ads, and reporting into one AI-powered subscription, from $99/mo. 15-day free trial, no card needed.

Explore A37 Loop

Let's talk about your growth.

Book a consultation with Sid, A37's founder — he'll review your brand and show you where the fastest wins are.

Book a consultation

Everything your eCom brand
needs to grow.

Book a consultation

Let's Work Together

Stop managing marketing. Start growing your brand.

Start your free 15-day trial. We'll show you exactly how A37 would run your brand's growth, no fluff, no pressure, no pitch deck.

No card required · Cancel anytime · Custom plan for your brand

Email marketing for eCommerce, flows first

The owned channel most brands waste

Every rupee and dirham spent on ads rents attention; your email list is the channel you own outright. Yet most D2C brands run it as a discount megaphone — one blast to everyone when sales dip — training their best customers to wait for coupons. Operator-run email inverts the priority: automations first (welcome, cart, browse, post-purchase, win-back), campaigns second, segments always, and every send measured in revenue per recipient.

Flows are the compounding half of retention: they work every new subscriber and every new order automatically, so email revenue grows with your list rather than your effort. Recovered carts pair naturally with WhatsApp journeys for India and GCC audiences, and the objections mined from replies feed content and ad hooks across the engine.

Deliverability, segmentation, and honest metrics

Great copy dies in the spam folder, so engagements cover the unglamorous foundations: domain warm-up, DMARC/SPF/DKIM, list hygiene, and sunset flows that clean as they convert. Segmentation runs on CLV and behaviour, which is how loyalists stop receiving the discounts they would have bought without — a direct profitability lever most email programmes ignore.

The service runs on Klaviyo, Mailchimp, or Omnisend inside your existing stack, and reports email's share of total revenue monthly. It is included in the Loop Managed plan, and the 15-day free trial includes a flow audit that shows exactly where your list is leaking revenue today.

Campaign calendars for Indian and GCC brands

Regional calendars decide email revenue as much as flows do: Diwali and the wedding season in India, Ramadan's inverted daily rhythm and White Friday in the GCC, plus each brand's own launch and replenishment cycles. Engagements plan sends around these peaks months ahead — inbox competition triples in season, and the brands that warmed their engagement rates in advance win the placement.

Email also feeds the wider engine: zero-party data collected in flows sharpens performance marketing audiences, subject-line winners become ad hooks, and the list itself becomes your cheapest conversion lab for offers before they spend ad budget.

Migration and setup, handled properly

Coming from a half-configured Mailchimp account or an agency-locked Klaviyo? Migration is part of the engagement: list hygiene before import (so old spam traps do not poison the new domain), flow-by-flow rebuilds with your data, and a warm-up schedule that protects deliverability through the transition. Nothing sends until authentication and baseline segmentation are in place.

The engagement also leaves you safer than it found you: your account, your templates, documented flows, and a test log in plain language. Email programmes fail most often at handover — ours are built assuming one will eventually happen, because owned channels should stay owned.

Frequently asked questions

Which email flows should an eCommerce brand build first?

Welcome series, abandoned-cart recovery, and post-purchase — in that order. They act on your highest-intent moments and typically pay for the entire programme before campaign sends even start.

Which email platforms do you work with?

Klaviyo, Mailchimp, and Omnisend primarily. We work inside your existing account — your list, templates, and data remain yours completely.

What share of revenue should email drive?

Healthy D2C brands typically see 20–30% of revenue from email once flows and segmentation are in place. If you're under 15%, that gap is usually the cheapest growth available to you.

How do you handle deliverability?

Domain authentication (DMARC, SPF, DKIM), warm-up scheduling, engagement-based sending, and regular list cleaning. We monitor inbox placement so volume never outruns reputation.

Is email marketing included in the Loop Managed plan?

Yes — flows, campaigns, segmentation, and reporting are part of Loop Managed. The 15-day free trial includes your flow audit and first fixes.

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