Liquified RV: $124K+ in email and SMS revenue from a full lifecycle rebuild
Liquified RV makes premium tank treatment and RV care products trusted by RV enthusiasts across the US, a founder-led, direct-to-consumer brand with a genuinely loyal customer base and strong bestsellers. The opportunity was turning that passionate, product-loyal audience into a predictable email and SMS revenue channel, because right now it wasn't one.
The challenge
The brand's positioning and product were strong, but the email programme wasn't conveying it. Broad, untargeted sends went out to a single segment with one message each, and revenue per campaign averaged just $275. SMS was almost entirely untapped. The flow stack was old and outdated, and didn't treat customers differently based on purchase behaviour. With no sign-up form strategy or giveaway mechanics in place, the list wasn't growing either, meaning the revenue ceiling was already shrinking before any of this was fixed.
What In-box did
- Rebuilt segmentation from the ground up, starting with buyers vs non-buyers
- Activated SMS as a full channel alongside email rather than an afterthought
- Built a full lifecycle automation stack of around 20 flows, including welcome series in both email and SMS, abandoned cart, abandoned checkout, browse abandonment, post-purchase, thank-you, win-back and dedicated giveaway flows
- Accelerated list growth with a proven sign-up form strategy
- Designed a seasonal, multi-touch campaign framework around Father's Day, an RV giveaway, Memorial Day, National RV Day and Spring de-winterisation, blending plain-text and creative-based sends
- Strengthened deliverability at scale as send volume grew
The results
Revenue has passed $124,000 since the engagement began, and is still climbing as In-box remains an active partner. The welcome and core flow stack alone generated $36,000 in its first four months, and 58 percent of total attributed revenue came from email and SMS in that period. Revenue grew 126 percent month on month outside of Black Friday and Cyber Monday, a truer read on sustained lift. Deliverability held at a 99.93 percent delivery rate across 847,000 delivered emails, while the list grew by 15,000 new email subscribers and 10,000 new SMS subscribers. A 10-day Memorial Day campaign, seven emails, three SMS messages and one dedicated flow, generated $25,000 from a list that had been essentially inactive a month earlier.
"You have two sides of your marketing strategy: acquisition and retention, and retention is the thing to fix before you focus too heavily on acquisition. I was very thankful we decided to work with In-box and get our retention strategy in place, so that now when we spend money on Meta ads, it's not wasted spend. We have infrastructure in place that's working in the background to keep customers engaged and coming back, buying from us every couple of months, and really increasing customer lifetime value."
The takeaway for founder-led DTC brands: fixing retention before scaling acquisition spend changes the math on every channel. A strong lifecycle programme means paid traffic converts into long-term customers instead of one-off sales.
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