Dear Subscriber,
 
 Some days ago I sent a mail to list [log in to unmask] I have put the
mail-option ACK 'on', as default. This has never produced the sending
of an acknowledgement from a list-subscriber. But in this case, I
received an acknowledgement from some hundred subscribers :( What is
wrong? I think LISTSERV has to negate / delete the x-acknowledgement
command in the header of the list.
 
 Yours,
 
  Fred Melssen
  listowner CPS-L and ETHNOHIS (at nic.SURFnet.nl)