Email Marketing·10 min read·Email marketing benchmarks 2026 — Part 9 of 11
Email attribution is broken: why your revenue numbers are probably wrong
Your ESP says email generated $X this month. That number is almost certainly too high. Last-click attribution gives email 100% credit for purchases that involved multiple touchpoints, and an estimated $66 billion is wasted annually because of it. This post covers why 51% of CTOs don't trust their platform data, how incrementality testing reveals your real email impact, and what privacy regulation means for the tracking signals attribution depends on.