[Mailman-Users] Prob1: How to disble unsubscribe for some users

[Leonardo Boselli]

I set up a list, i did a mistake and so after one month all subscriber 
received their password valid to unsubscribe. 
Since some user MUST NOT unsubscribe the list, there is a way 
to "change" the password for them (I have root access to the 
server) so they cannot use the previous one to unsubscribe ?  
Leonardo Boselli
nucleo informatico e telematico
Dipartimento Ingegneria Civile
Universita` di Firenze
V. S. Marta 3 - I-50139 Firenze
tel +39()0554796431 fax +39()055495333
http://www.dicea.unifi.it/~leo