From an 8-email flow to a testing engine with 400+ variants
We started with a classic nurture: eight fixed emails, the same for everyone, tested one subject line at a time. We rebuilt it as an engine. AI generates variants of each message for different audiences and angles, every send is a test, and the winners feed the next round.
- One static sequence became 400+ live email variants
- Each message tied to a reason and a value for the reader
- Continuous A/B testing instead of quarterly rewrites
- The team moved from writing emails to designing the system