The date the mail pieces will be sent out.

Date(s) on which a user has the obligation to mail a specific list (by prior agreement with the list owner)

Date when a list user, by prior agreement with the list owner, is obligated to mail a specific list. No other date is acceptable without specific approval of the list owner.

Date(s) on which a list owner and a list user have agreed for the list user to mail a specific list.No other date is acceptable without specific approval of the list owner.