10.3.3-14 Saving Transmitted Data Until Receipt is Confirmed

A copy of any transmitted message should be saved automatically until correct receipt has been confirmed.

Additional Information:
The primary objective is to prevent irretrievable data loss during transmission. For many system applications, however, the originator of a message will probably want to retain a copy in any case. Any subsequent deletion of that copy should probably be handled as a separate transaction, distinct from data transmission.