Case Study · Email Marketing · Real Ecommerce Data

€368K From
a Channel
They Own.

Period 25 months
Revenue tracked €1M+
Email contribution ~35%
List grown to 13,924
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This case study uses real, anonymized data from an active ecommerce client. Brand details are withheld by agreement — the numbers are not.

Anonymized Apr 2024 – Apr 2026
€84.6K
Single-month revenue peak
September 2025
7.58%
Unsub rate at its worst
Feb 2025 — then fixed
2.1%
Unsub rate after optimisation
Steady from Jun 2025
4×
Automations vs campaigns
Flows outperformed most months
01 /

Before email existed

From January to June 2024 this store was earning revenue on its own — respectable, but capped. No owned audience, no compounding channel. Paid or organic traffic would arrive, convert at whatever rate it did, and leave. There was nothing to retarget, nothing to nurture, no way to reach customers again without spending more to acquire them again.

02 /

What changed in July 2024

Email went live. Automations first — welcome sequences, abandoned cart flows, post-purchase triggers. Then campaigns. Within four months, revenue that had been flat was compounding. The automations built in those early months continued running through the entire 25-month dataset with minimal additional effort.

This is the part clients often underestimate: you build the flows once. An abandoned cart email doesn't need a strategist to fire it at 2pm on a Tuesday. It fires 30 minutes after someone leaves without buying, every time, indefinitely.

Email campaigns are where strategy becomes revenue. Every send is a controlled experiment in persuasion.
03 /

The unsubscribe crisis — and the recovery

The most instructive chapter in this data isn't the revenue peak. It's February 2025, when the unsubscribe rate hit 7.58%. Industry benchmarks flag anything above 0.5–1% as worth investigating. 7.58% is a distress signal.

The list had nearly doubled from October 2024 to February 2025. Fast growth is exciting. Poor acquisition quality is not. When subscribers opt in without genuine intent — or get bombarded before they're ready — they leave.

The correction involved better segmentation, cleaner acquisition sources, and more deliberate send cadence. By June 2025, the unsub rate had dropped below 3% and never came back up. The engaged list kept growing anyway — from ~6,000 in mid-2025 to nearly 14,000 by April 2026. Quality and scale, at the same time.

04 /

What this means for your brand

Most ecommerce brands treat email as a promotional tool — something you send when there's a sale. This data shows it's infrastructure. The channel that amplifies everything else: makes product launches land harder, turns seasonal peaks higher, and increases the lifetime value of every customer you've already paid to acquire.

The brands that struggle with email make one of two mistakes. They underinvest and leave recoverable revenue on the table. Or they over-extract — too many sends, poor targeting, purchased lists — and burn trust faster than they can rebuild it.

Done right, email isn't just a revenue channel. It's the most durable asset an ecommerce brand can build.

The brand's journey

Four Phases Across
25 Months

Jan – Jun 2024
Pre-email
Store Alone
Revenue generated organically. No owned audience channel. Growth capped without a way to re-engage customers after the first purchase.
Jul – Oct 2024
Ramp-up
Setup & Launch
Automations go live. First campaigns sent. List starts growing rapidly. Revenue begins scaling in a way organic-only channels rarely sustain.
Nov 2024 – May 2025
Growth
Fast Growth, High Churn
List doubles. Revenue peaks. Unsub rate spikes to 7.58% — a warning that acquisition quality hadn't kept pace with volume.
Jun 2025 → Present
Optimised
Healthy & Scalable
Unsub rate drops below 3% and holds. List grows to 14K. Revenue stays elevated. The channel matures into a sustainable owned asset.

See the Full
Data & Charts

The complete deep-dive — interactive charts, 25-month performance table, unsubscribe rate analysis, and the full breakdown of campaign vs. automation revenue.

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