How Top Brands Drive 30-50% of Revenue From Email

Hey, Tarun here from Milkshake 🥤

Here’s the reality:

Most ecommerce brands generate 5-15% of their total revenue from email/SMS.

That’s not bad… but it’s leaving a huge amount of money on the table.

The best-in-class brands we work with consistently drive 30-50% of revenue from retention channels.

👉 Here’s the roadmap that gets them there

1. List Growth That Scales

If your list isn’t growing, your retention channel can’t scale. It’s that simple.

The mistake most brands make: weak, generic popups (“Sign up for our newsletter”). These convert at 1-3%.

High-performing brands build popups that hit 10%+ of traffic, using:

• A clear incentive (discount, free shipping, gift, or lead magnet).

• Multi-step forms that capture email first, then SMS.

• Segmentation (new vs. returning visitors, mobile vs. desktop).

• Zero-party data capture (quiz-style questions to personalize flows).

• Including micro-commitments (Want 20% Off? with a yes or no CTA)

📈 The math is powerful: double your popup conversion rate, and you can literally double your retention-driven revenue.

2. Flows That Cover Every Stage Of The Journey

Most brands set up 1-2 flows (usually Abandoned Cart + Welcome) and call it a day.

But that’s just scratching the surface.

To hit 30–50% revenue, you need a complete flow ecosystem, including:

• Welcome Flow → turn signups into first-time buyers.

• Abandoned Cart + Checkout → recover high-intent shoppers.

• Post-Purchase → drive 2nd orders and increase LTV.

• Replenishment → automate reorders for consumables/CPG.

• Winback → reactivate churned customers.

• VIP + Loyalty Flows → turn best buyers into brand advocates.

👉 And that’s just the core flows. Advanced flows (price drop, back in stock, referral triggers, etc) take you to the next level.

3. Campaign Strategy That Balances Sales + Value

Without a campaign calendar, most brands fall into “feast or famine.”

They send only when they’ve got a sale or launch.

Best-in-class brands:

• Send 3-4 campaigns per week consistently.

• Balance 30-40% promotional (non-discount) emails with value + storytelling (education, UGC, founder notes).

• Build an evergreen campaign bank they can repurpose year-round.

👉 Done right, campaigns alone should drive atleast 20% of total store revenue every month.

4. Deliverability Optimization

Here’s the thing: even the best creative is worthless if it lands in spam.

Top brands monitor deliverability as closely as sales. They:

• Clean their lists regularly (suppress unengaged subs).

• Authenticate sending domains (SPF, DKIM, DMARC).

• Track inbox placement (Primary vs. Promotions).

• Watch deliverability metrics like a hawk.

👉 Protecting deliverability ensures every campaign + flow actually gets seen, and that lifts total retention revenue by a surprising margin.

5. Layering In SMS For Compounding Impact

Email gets you to 20-30%. Adding SMS pushes you into the 30-50% range.

Why? Because SMS:

• Cuts through crowded inboxes.

• Works best for urgency-driven flows (cart, browse, price drop, limited stock).

• Is perfect for VIP segmentation + exclusivity plays.

• Drives insanely high CTR (10-15%+) when used sparingly.

📌 Pro tip: Don’t blast SMS like email. Keep it to 1-2x per week max, use it for urgency and VIPs, and always tie it back to your flows.

Recap:

Getting from 10% → 30–50% of revenue from email/SMS isn’t about one magic trick. It’s about building the full system:

1. List growth that scales (10%+ popup conversion).

2. Flows that cover the entire journey (not just cart + welcome).

3. A campaign calendar that balances sales + value.

4. Deliverability optimization to make every send count.

5. Strategic SMS layering to multiply impact.

Do all five, and you’ll turn email/SMS into your most profitable channel, without burning more money on ads.

See you in the next one,

Tarun

PS: If you’re an ecommerce brand making over $50K/month and you want a free in-depth Email Marketing Audit in under 24 hours, book a call with me personally here.