[Air-l] Tutorial: How to unsubscribe from air-l

[elijah wright]

> Something weird happened when the list host changed. For some reason I 
> had stopped getting mail from the list for quite some time. Then boom, 
> the messages started coming again. (I sub to too many lists, so I sort 
> and often ignore). I suspect something happened that 'dormant' 
> subscribers got reactivated. They were surprised. Many unsubbed. So I 
> think it may not just be a case of clueless users, but something 
> triggered in the system to send mail to folks who probably did not think 
> they were on the list.

if an account bounces a lot of mail (say for an exceeded quota) over a 
period of time, Mailman will set that individual to 'nomail' rather than 
continuing to make delivery attempts.

most likely a number of people were "reactivated" by the list move.