Most SaaS emails have a 20%+ open rate and a 1.5% CTR. The subject line worked. The email architecture failed. Strategic Flow diagnoses the structural failures that stop readers from clicking after they open — not deliverability, not copy tone, not list quality. The message architecture. Paste any SaaS email. Get back: → A conversion score 1–10 against 7 diagnostic checks → The exact failure pattern Built on 54 public teardowns. Average email scores 3.4/10, rebuild 9/10 Free. No card required