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Steal the system that took my newsletter subjects from 42% to 52.98% open rates
A free step-by-step guide to writing high-performing subject lines using Claude, your own data, and a human in the loop.
The Ultimate Guide to High-Performing Newsletter Subject Lines Using Claude
A weekend-length playbook that shows you exactly how I built an AI-powered subject line system for a 190,000-person newsletter - including the prompts, the pattern catalogue, and the 12 template structures I use every single week.
Once you've entered your e-mail, you will be redirected to the guide instantly.
I respect your privacy. Opt-out any time.
What's Inside
- The 1-prompt quick win you can paste into Claude today to beat 90% of the subject lines in your inbox.
- 12 proven template structures with formulas, real examples, and when each one breaks
- 5 emotional angles that force Claude to stop defaulting to the same 2 hooks on every send.
- The 30-character rule that every one of my 52 top performers obeyed — with zero exceptions.
- 9 quality-check criteria every subject line must pass before it's allowed out the door.
- 6 banned openers that quietly tanked my open rates for 4 months before I caught them.
- 1 word swap that beat its alternative by 13 percentage points in otherwise identical sends.
- A 4-step maintenance loop to re-run every 10 sends so your patterns never go stale.
Once you've entered your e-mail, you will be redirected to the guide instantly.
I respect your privacy. Opt-out any time.
Disclaimer:
This is the process I've personally used to improve newsletter performance. Using it doesn't guarantee these results.