I'm having some trouble with a bouncing e-mailadress (still investigating). I didn't really understand the bounce_score_threshold help text. Mailman 2.1.3 help text for the item is:
bounce_score_threshold (bounce): The maximum member bounce score before the member's subscription is disabled. This value can be a floating point number.
I think the explanation on http://www.washington.edu/computing/mailman/owners/maintenance.html is much clearer. Can the text be changed to something like:
bounce_score_threshold (bounce): The maximum member bounce score before the member's subscription is disabled. Each subscriber is assigned a bounce score (floating point number) and every time Mailman encounters a bounce from this member, the score goes up. Hard bounces (meaning a fatal error) increase the score by 1, while soft bounces (meaning a temporary error occurred) increase the score by 0.5. Note that the bounce scores are only increased once per day so even if ten hard bounces are received for the same subscriber in one day, the subscriber's score will increase by only 1 for that day.
PieterB