Hello All, Recently I have moved a test list to be distributed after business hour. Even though the list header has "Ack= Yes", the acknowlegde notification only distributes to sender when the actual message has been sent. I would like to know if there is any option that I can immediately notify the sender when he/she posts a message to the list. Thus, the notification can insure the sender that his/her message has successfully posted but it will be distributed after hour. I have considered the moderator option. However, I would like to know if I could use other options accompanied with Non-Prime distribution's acknowledgement. I really appreciate any idea, help that you provide. Best Regards, Ho Cao Do