ACK will give them a reassurance the message has been distributed. REPRO gives them their message back if they are subscribed to the list. John Cottingham At 10:54 AM 8/15/2002 -0400, you wrote: >I am having a bad day. I can't find which header information it is that >will make sure that a subscriber will recieve the message they post. Seems >that the owners are not getting their message back or seeing them posted.