Diagnose your unsubscribe rate and understand what it signals about list health.
Evaluate your unsubscribe rate against industry benchmarks and diagnose the likely root cause.
Note: Unsubscribes are preferable to spam complaints. An unsubscribe rate of 0.5% is far less damaging than a complaint rate of 0.1%. Consider making unsubscribing prominent to redirect complaints to the opt-out flow instead.