Anti-Fragile take
Bounce rate is the canary in the deliverability coal mine. A rising bounce rate means your list is decaying, your validation failed, or your infrastructure is burned.
We treat bounce spikes as system failures, not rep problems: trace back to enrichment source, validation step, and list age.
Why it matters
High bounce rates destroy sender reputation, which kills deliverability for the entire team, not just one rep.
How we build it
Pre-send validation waterfalls, bounce webhooks that invalidate contacts, and auto-pause on threshold breach.