I tried the following settings:
Minimum number of bounces = 1
Minimum number of days with bounces = 1
Minimum number of days between oldest and newest bounce = 1
Once I changed the settings, I ran the bounce cron job, but none of the single soft bounce members were marked as inactive.
Is there a way I can either manually do this or use some setting that may work? Our hard-bounces are all clear, but there is a significant minority of soft-bounces that happen each time - I'd like to do a one-off purge.