
Why Open Rate is a Vanity Metric: Email Deliverability Explained
1/21/2026
This post introduces the concept of email deliverability as a critical technical system, contrasting it with vanity metrics like open rates. It details the technical pillars of sender reputation (volume consistency, engagement ratios, spam reporting), explains the 'volume = wins' fallacy from an infrastructure perspective, and highlights the necessity of automated inbox warming. It also positions Reevo's platform as having native, automated inbox warming, smart throttling, and multi-inbox management as core deliverability features, differentiating it from legacy sales engagement tools.