Inevitable Marketing — Email Marketing & Retention For Ecommerce Brands

Email Marketing That Grows Your Ecommerce Revenue

Book Your Free Email Audit

Brands we've worked with

Built For Athletes Weylyn — Son of Wolf Solace Bands Build A Head Volcanica Coffee Company Matcha Nude FemmeFunn Camp N Car Chili.com Sweet Freedom B Chic Fashions Vortex Haus Layzee Living Bell Tent Sussex

The problem

Most ecom brands send a few emails. Very few have a lifecycle program.

If email is doing 10–20% of your revenue, you're leaving real money on the table.

The difference isn't sending more emails. It's sending the right message to the right person at the right time.

And with paid acquisition costs climbing every quarter, the brands without a lifecycle program are the ones getting squeezed first. You can't out-spend rising CAC. You can out-retain it.

Without a lifecycle program

  • Short-term revenue thinking
  • Discount-heavy months
  • Low repeat purchase
  • Expensive paid acquisition

With a lifecycle program

  • A stronger share of revenue from email
  • Higher customer LTV
  • Predictable monthly revenue
  • Paid ads finally profitable

Why us

Most agencies say the same things. Here's how we're actually different.

Typical Klaviyo agency

  • Junior account managers do the work
  • Set-and-forget flows
  • Sends the same campaign to your whole list
  • Reports open rates and "attributed revenue"
  • Pulls flows from a template library
  • Sells you on retainer length

Inevitable Marketing

  • Senior strategists do the actual work
  • Weekly testing and optimisation
  • Segments by behaviour, intent, and purchase history
  • Reports % of total revenue, LTV, repeat purchase rate
  • Builds flows around YOUR brand and YOUR data
  • Stands by what we promise — delivers results

And here's what we won't do.

  • We won't optimise for vanity metrics like open rates or Klaviyo's "attributed revenue."
  • We won't pull flows from a template library and slap your logo on them.
  • We won't sell you on retainer length. We focus on the work and report results transparently.
  • We won't lock you in to long-term contracts. We prove ourselves, and you decide how long you keep us around.

How we do it

A 3-phase rebuild of your retention program.

→ First quick wins in 30 days. Real, measurable lift by 60.

PHASE 01

Diagnose.

We pull apart your current setup — flows, segmentation, creative, reporting. We map where revenue is leaking and where the easy wins live. No assumptions, no guesswork.

PHASE 02

Build.

We rebuild Klaviyo around behavior-driven flows: welcome, browse, cart, post-purchase, win-back, VIP, churn recovery. Designed to your brand — not pulled from a template library.

PHASE 03

Improve.

Consistent testing, optimisation, and reporting. Email becomes your most reliable asset.

Proof

What this looks like in real brands.

Here is what working with us looks like.

What our clients actually say:

"Quality of their output is great. We are continually leveraging them more and more to help grow our business."

James G.

Sample work

Real emails we've shipped.

Welcome flows, campaign heroes, seasonal sends — twelve emails we've shipped, across ten brands.

The metric reframe

Most agencies are optimising for the wrong thing.

If your only measure of email success is Klaviyo's "attributed revenue" number, you're missing the picture. Anyone can game that number.

What we actually measure — and what you should:

  • % of total monthly revenue from email (a key metric we track)
  • Customer LTV — are your buyers worth more over time?
  • Repeat purchase rate — are you actually retaining anyone?
  • Discount dependency — are sales coming from real demand or constant promos?

If your current agency can't tell you these numbers, they don't understand retention. They're just sending emails.

Testimonials

What our clients say — unprompted.

★★★★★ Rated Excellent on Trustpilot
★★★★★

"Mac and team are incredible. Have loved working with them. Quality of their output is great. Costs are reasonable. We are continually leveraging them more and more to help grow our business."

James G.
US · 5-star Trustpilot review

★★★★★

"Mac and the team have been amazing. I was just randomly sending emails before but they came in and set up my flows. Now we are sending weekly emails and engaging with my clients. The emails bring in lots of sales. I referred them to another friend who has a Shopify store and he loves them too."

Ben Russell
US · 5-star Trustpilot review

★★★★★

"Mac and his team are amazing! Of course they're making us money and improving our metrics like we love, but they're also so easy to work with. We're a small business so sometimes things are chaotic and unorganized on our end, but they work with us and make email marketing effortless for us!"

Breanna
US · 5-star Trustpilot review

The offer

Spend an hour with our founder.

An experienced email marketing team that has worked with a range of ecommerce brands.

On the call, we open up your Klaviyo account live and audit it together. We show you exactly where you're leaving money on the table — flows that don't exist, segments that aren't being used, creative that isn't earning its keep.

It's an hour. It's free. You leave with real findings whether we work together or not.

Book your strategy call

FAQ

Common questions.

How long until we see results?

Quick wins typically land in the first 30 days. Measurable lift usually follows within 60 days. We're not here to drag this out — we're here to make email a real revenue line.

How much of your time do we need?

Most brands spend 30–60 minutes per week reviewing and approving work. We do the heavy lifting; you keep the final say.

Do you set expectations up front?

In the free audit we assess whether the data supports meaningful improvement, and we tell you honestly what is and isn't realistic before you commit. If your fundamentals aren't ready, we'll tell you straight — not sell you something that won't work.

What does it cost?

Engagements start at £1,500/month, scaled up from there based on your revenue, lifecycle complexity, and scope. Month-to-month — no long-term contracts. We'll dial in the exact number on the strategy call once we've seen what your account actually needs.

Do we have to use Klaviyo?

Klaviyo is where we do our best work and where most established ecommerce brands land. If you're on another platform, we can discuss it on the call.

Ready when you are.

One hour. Free. Live audit of your Klaviyo. Real findings whether we work together or not.

Book your free strategy call