Email Marketing Case Studies: Revenue From the List

See how OuterBox turns email lists into measurable revenue through automation, testing, and lifecycle programs for ecommerce and B2B brands.
141%Increase in average monthly email revenueMount-It
26%Year-over-year automation revenue increaseLethal Performance
$51,000Recovered in the first 90 days of one new flowUnclaimed Baggage

Real Brand Results

Email Programs That Paid For Themselves

Three programs, three different email disciplines. Every number below comes from the linked case study.

Mount-It logo

Email automation

Mount-It had a drifting Welcome Series and a broken SMS integration losing revenue. We fixed both, then retuned timing and the offer. 141% more monthly email revenue, +77 orders.

Lethal Performance logo

Segmentation and personalization

Lethal Performance cannot send a Bronco owner and a Silverado owner the same parts. Klaviyo automations now match the vehicle. 26% automation revenue growth year over year.

Unclaimed Baggage logo

Lifecycle and cart recovery

Unclaimed Baggage had strong browse and checkout flows, but add-to-cart drop-offs fell through the gap. A new cart-abandonment flow closed it. $51,000 in the first 90 days, 325 extra orders.

See Where Your Email Program Can Work Harder

Tell us about your email program. We’ll review your current setup for gaps in lifecycle and automation coverage, deliverability and list health, and measurement and revenue attribution.
  • Lifecycle and automation coverage
  • Deliverability and list-health risks
  • Measurement and revenue-attribution opportunities
We'll contact you here to arrange the review.

How It Works

How We Get These Results

The same three stages produced every number above, whether the program was already running or starting from nothing.

1

Audit

We start with what is actually happening: deliverability, list health, which automations exist and which do not, and whether revenue is being attributed to email correctly in the first place.

2

Build

Segmentation that reflects how people actually buy, lifecycle flows for welcome, cart, and post-purchase, and a template system your team can run without us.

3

Test and scale

Creative, subject lines, send timing, and frequency, tested against revenue rather than open rates.

Zerbee email marketing testimonial graphic beside the client quote

“I have worked with some of the OuterBox team members in a past life so it was an easy call to make when we needed help with our email strategy. They took the time to thoroughly understand our situation and came up with a comprehensive solution to not only address our immediate needs, but align them with our long-term goals. The work they have done is already paying off and I know we will exceed our expectations.” — Mark Melius, Zerbee Business Products

All Email Marketing Case Studies

Mount-It email automation case study

Email  |  Mount-It

Mount It Email Automation
Ab Header Test Case Study

Email  |  Name Confidential*

AB Email Header Test
Ab Salesforce Email Case Study

Email  |  Window Company

Window Replacement SFMC Email Testing
Unclaimedbaggage Vip Email Case Study

Email  |  Unclaimed Baggage

Unclaimed Baggage Loyalty Automation
Zerbee Email Automation Case Study

Email  |  Zerbee Business Products

Zerbee Marketing Automation
Lang Antiques enhanced email engagement case study

Email  |  Lang Antiques

Lang Antiques Enhanced Email Engagement
Home improvement financing data hub case study

Email  |  Company Name Confidential*

Home Improvement Financing Data Hub
Email Case Study Industrial B2B

Email  |  Company Name Confidential

Protection Mats Industrial Email Marketing
Lethal Performance Email Case Study

Email  |  Lethal Performance

Lethal Performance Email Customization
Unclaimed Baggage email and SMS partnership case study

Email  |  Unclaimed Baggage

Unclaimed Baggage Email and SMS Partnership
Unclaimed Baggage cart abandonment email case study

Email  |  Unclaimed Baggage

Unclaimed Baggage Cart Abandonment
Service partner email automation case study

Email  |  Company Name Confidential

Service Partner Email Automation

Email Marketing FAQs

The flows in these case studies produced measurable revenue inside a quarter. Unclaimed Baggage’s cart-abandonment flow returned $51,000 in its first 90 days before we made any further changes. Timelines depend on list size and how much automation already exists.

We work in yours where it is viable. Every case study on this page runs in Klaviyo, and we also work in HubSpot, Salesforce Marketing Cloud, and Mailchimp.

We review your current setup for gaps in lifecycle and automation coverage, deliverability and list health, and measurement and revenue attribution. No obligation.

Usually yes. Mount-It’s 141% came from optimizing an existing Welcome Series rather than rebuilding it, and one of the largest single wins was repairing a broken integration that had been quietly losing revenue.

Yes. Unclaimed Baggage and Mount-It both run SMS alongside email in Klaviyo, which is what makes behavioural segmentation work across both channels.

You do. The segmentation logic, lifecycle flows, and template system live in your platform under your account, and your team can run them without us.