Log node MTA option

Transaction logging MTA options:  (0 or 1; OpenVMS only until MS 6.3)
The  MTA option controls whether or not the node associated with the process generating an entry is saved in the    file (and   file, if a separate connection log file is used). This may be useful information when the MTA is running in a multi-node cluster.

A value of 1 enables node name logging. When the node name is logged, it will appear as the first field following the date and time stamps in log entries. In XML-compatible format (  set to 4), node logging, if enabled, appears as the   attribute. A value of 0 (the default) disables node name logging. (Note that on UNIX and Windows, prior to MS 6.3, the  node name was always considered to be null, so on UNIX and Windows, attempting to set   to 1 merely resulted in an empty node field; i.e., an extra space after the time stamp in formats other than XML format. As of MS 6.3, if   is 1, then the MTA on UNIX will log the result of a   call when that call found  a value, or the "L" channel official host name, otherwise.)

See also:
 * Transaction logging MTA options
 * MTA transaction logging
 * log_format MTA Option