Stack Innovations / Services / Digital Marketing / Email & CRM
Email & CRM · Digital Marketing

Revenue that runs itself.
Lists that compound.

Lifecycle email and CRM that earns its keep on autopilot — Klaviyo and HubSpot flows, sharp segmentation, and deliverability tuned until a third of revenue comes from an audience you already own and never pay twice for.

/01Drag the list size · watch the revenue move
Live · projected monthly email
ROAS 38×
Opens (MPP-inflated · directional)0
Clicks0
Orders0
Revenue$0
List size 40,000
Avg. revenue from email34%
Median email revenue share+18pt
List revenue managed$31M
Top-flow ROAS up to38×
Built with the tools this work actually runs on
02 — Outcomes

Lists that return.

The moves we make on this work, and what each one is there to shift. Every engagement starts by deciding which of these actually applies to you.

Flow Library Build
DTC · Klaviyo flows
We build the full flow library, segment it by skin concern and purchase recency, and retire the daily batch-and-blast.
GrowsOf revenue from email
Sender Reputation Reset
E-comm · Segmentation
We tier sending by engagement, suppress dead weight, re-permission the list, and rebuild sender reputation.
RaisesOpen rate
Subscriber Win-Back
Subscription · Win-back
We run lapsed-subscriber win-back with a tasting-flight offer, churn-predictive timing, and an SMS nudge on the final step.
RaisesReactivation rate
Parenting Welcome Series
DTC · Welcome & LTV
We map the welcome series to the parenting timeline, set replenishment reminders by product, and add milestone triggers.
RaisesFirst-year LTV
Cross-Sell Coordination
E-comm · SMS + email
We coordinate email and Postscript SMS on one consent timeline, with post-purchase cross-sell by gear category.
RaisesRepeat-purchase rate
Deliverability Foundation
DTC · Deliverability
We fix SPF/DKIM/DMARC alignment, warm a dedicated IP, prune spam-traps, and cut complaint rate to spec.
ImprovesInbox placement
03 — The flow builder, live

You don't send more.
You automate better.

Most of email's revenue isn't the weekly campaign — it's the always-on flows triggered by what a customer actually does. Switch flows on below and watch automated revenue stack, and the share of total revenue coming from email climb toward the 30%+ that healthy programs hit.

Klaviyo · Lifecycle flows Toggle a flow to arm it
Flows armed
Campaign revenue
Automated revenue / mo
Arm the always-on flows — they fire on behaviour, not a calendar, so they earn while you sleep.
04 — Anatomy of the program

Built like a system,
not a newsletter.

The margin hides in the plumbing — segments that fire the right flow, branch logic that respects what someone bought, and authentication that lands you in the inbox. This is the builder we live in every day.

Klaviyo · Halo Skincare
Sender rep 98/100 · Email revenue 41% of total
Flow stepTypeWaitOpenClickRev / send
Welcome · email 1Email0h62%14%$2.40
Welcome · brand storyEmail2d48%9%$1.85
Cart · reminderEmail4h55%18%$6.20
Cart · SMS nudgeSMS20h11%$4.10
Cart · last call + offerEmail22h41%13%$5.05
Unengaged 120dSuppressprotect rep
45%+ click-engaged · send freely
25–44% watch · test subject + cadence
suppress or sunset to protect deliverability
01
05 — The growth program

Audit first.

Before a single send, we read the account — list health, current flows, deliverability, and where revenue actually comes from. Is the list earning, or quietly poisoning your sender reputation?

/ Week 00 · Audit
LeakNo browse-abandon or win-back flow — money left on the table
RiskSending to a 22% unengaged segment, dragging inbox placement
Hidden winPost-purchase flow at 9× ROAS, only one email deep
AuthDMARC at p=none — domain unprotected, spoofable

Map the lifecycle.

Every customer moment gets a trigger. Segments defined by behaviour and value, the flow library scoped end-to-end, and authentication fixed so the work we build actually reaches a human.

/ Week 01 · Plan
FlowsWelcome · Cart · Browse · Post-purchase · Win-back · Review
SegmentsEngaged 30/60/90 · VIP · at-risk · never-purchased
AuthSPF + DKIM aligned · DMARC to p=quarantine
ChannelsEmail + SMS on one consent timeline
Targets30%+ revenue from email · <0.1% complaint rate

Build the flows.

Live with the core revenue flows — welcome, cart, post-purchase — branch logic that respects what someone bought, copy and design that sound like the brand, and a test purchase through every path before it ships.

/ Week 02 · Build
Welcome series · 3 emails · branched by source
Abandoned cart · email + SMS · last-call offer
Post-purchase · thank-you · cross-sell · replenish
Test purchase through every branch · render-checked
Win-back + review flows armed after data builds

Segment & test.

Engagement-tiered sending so the inbox stays warm, subject-line and offer tests that actually conclude, and the segments built earlier doing their job — the right message to the right person at the right recency.

/ Weeks 03–06 · Optimize

Protect the inbox.

Deliverability is the whole game — monitor sender reputation, suppress dead weight before it complains, watch Google Postmaster, and keep the list a permission asset, not a liability that lands you in spam.

/ Ongoing · Deliverability
SPF · DKIM · DMARC
Sender rep monitored
Sunset unengaged
Spam-trap pruning
Postmaster watch
Complaint < 0.1%
List-unsubscribe header
Dedicated IP warmed

Report in plain English.

A weekly number you actually understand — email revenue, share of total, what changed and why, what's next. No vanity open-rate dashboard; the lines that decide whether the owned channel is pulling its weight.

/ Ongoing · Report
This month$182K email revenue · 38% of total · 41× ROAS
ChangedAdded browse-abandon · pruned 4,200 unengaged
NextTest win-back offer · split welcome by first product
CadenceWeekly note · monthly strategy call
06 — Why it compounds

An owned list appreciates.

Every cycle feeds the next: cleaner data sharpens segments, flows triggered by behaviour earn while campaigns rest, and a warm sender reputation lifts every send that follows. Rented audiences cost more each year. An owned list, worked, only grows more valuable.

Owned & managed by Stack Innovations — revenue share climbs as flows + reputation compound
Batch-and-blast — flat at best, eroding deliverability at worst
Representative of a typical 12-month lifecycle engagement · indexed to month-one email revenue.
07 — Tools · honest kit

The kit, shown.

The platforms we actually log into every week to build, segment, send, and protect. No mystery tooling — just the kit that keeps the list earning and the inbox open.

Lifecycle
Klaviyo
ESP
Mailchimp
CRM
HubSpot
SMS
Postscript
Testing
Litmus
Automation
Customer.io
CDP
Segment
Deliverability
Postmaster
Design
Figma
Planning
Notion
Connect
Zapier
Comms
Slack
Start the program

An audience that pays
you back. Yours.

Free lifecycle audit to start — we'll map your flows, score your deliverability, and show you what a third-of-revenue email program would return, before you commit a dollar. A plan, not a pitch.

Get a free audit
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