Separate connection log MTA option

Transaction logging MTA options:  (0 or 1)
The  MTA option controls whether the connection log  information generated by setting    to 1 is stored in the usual  MTA message transaction logging files,  , or stored  separately in   files. A  value of 0, the default, causes connection transaction logging to be  stored in the regular message  transaction log files; a value of 1 causes the  connection transaction logging to be stored separately.

See also:
 * Transaction logging MTA options
 * MTA transaction logging
 * log_connection MTA Option
 * LOG_CONNECTION TCPIP-channel-specific option