Glossary
Open rate
Useful trend, terrible truth.
Open rate is opens divided by delivered. Since Apple Mail Privacy Protection began auto-firing open pixels in 2021, raw open rates are inflated and unevenly so — fine for trends within your own list, useless as absolute truth.
The sharper questions are per-person: who opened, how consistently, and what did they do next?
In ListFunnel
ListFunnel keeps open rate as a trend line but does its real work at the person level, where privacy-pixel noise averages out into behaviour patterns.
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