This is the format of a row of the Exchange 2010 message tracking log that is returned with logparser:
date-time
client-ip client-hostname server-ip server-hostname source-context connector-id source event-id internal-message-id message-id recipient-address address1@heerwegh.com;ad recipient-status total-bytes recipient-count related-recipient-address reference message-subject sender-address return-path message-info directionality tenant-id original-client-ip original-server-ip custom-data