Log_remote_mta MTA option
Transaction logging MTA options:
(New in MS 126.96.36.199.) The
log_remote_mta MTA option controls whether the remote MTA name is included in MTA message transaction log entries as a separate field and
LOG_ACTION mapping probes that correspond to an operation involving a remote SMTP or LMTP server.
Setting bit 0/value 1 enables the generation of the remote MTA and also disables the inclusion of this information in the diagnostics field; clearing the bit disables the use of a separate field. The default is 0.
If logging is enabled, the remote MTA name will be logged just after the SMTP delivery status (
log_diagnostics SMTP diagnostic) field and just before the ISC status field. In XML or JSON format (
log_format set to 4 or 5, respectively), the reason logging, if enabled, appears as the
rm attribute only appears in XML or JSON format logs if there is remote MTA information to log. Setting bit 2 (value 4) will cause the attribute to appear unconditionally.
Bit 1 (value 2), if set, causes remote MTA information to be included in
LOG_ACTION mapping probes.