We assume around a fifth of a list has gone stale, the yearly industry baseline. Your real split shows after the free first 1,000.
Remove before your next send
5,000
Bounce risk today: ~20% · danger zone
Real subscribers kept20,000
Cost to clean the list$150
Bounce rate after cleaningunder 1%
Revenue you keep protected$20,000/mo
One blocklisting or spam-folder spiral can pause that whole $20,000. Cleaning is the cheap insurance.
Clean my list →