When subscribe a list, normally one will receive  "Finally, your  command
will be  cancelled automatically if  LISTSERV does
not receive your confirmation within 48h. After that time, you must start
over and resend the command to get a new confirmation code. If you change
your mind and decide that you do  NOT want to confirm the command, simply
discard the present message and let the request expire on its own."


Is there a way of changing the confirmation period from 48h to something
else?