Log alternate recipient MTA option

Transaction logging MTA options:  (0-3)
(New in MS 8.0.1.) The  MTA option controls whether or not any alternate recipient is included in MTA message transaction log entries and/or    mapping table probes. Setting bit 0 (value 1) causes the alternate recipient ABY and ARCPT values to be logged immediately after the SMTP DELIVERBY value is logged, before the intermediate address. " " and " " attributes are used in the XML log format. If bit 1 (value 2) is set in the  MTA option,  then this information appears as a pair of values in the    mapping table probe immediately after the  DELIVERBY, before the  intermediate address.

See also:
 * Transaction logging MTA options
 * alternate_recipient MTA Option
 * alias_alternate_recipient Option
 * ldap_alternate_recipient MTA Option
 * log_deliver_by MTA Option
 * log_intermediate MTA Option
 * MTA transaction logging
 * Triggering effects from transaction logging with LOG_ACTION
 * log_format MTA Option