Log times MTA option

Transaction logging MTA options:  (0-63)
The  MTA option controls whether deferred delivery time request values -- and optionally message expiry time values -- are included in MTA message transaction log entries or   mapping probes.

Bit 0 (value 1), if set, enables logging any deferred delivery request time, as for instance requested via the FUTURERELEASE SMTP extension or Deferred-delivery: header line. Clearing bit 0 disables such logging. In XML or JSON format ( set to 4 or 5, respectively), the  deferred delivery time logging, if enabled, appears in the   attribute. Bit 1 (value 2), if set, causes a deferred delivery request time field to be included in  mapping probes.

Normally the  attribute only appears in XML or JSON format logs if there is deferred delivery time information to log. As of MS 8.0.2.3, setting bit 4 (value 16) will cause the attribute to appear unconditionally.

Bit 2 (value 4), if set, enables logging any message expiry time. In XML or JSON format ( set to 4 or 5, respectively), the  message expiry logging, if enabled, appears in the   attribute. Setting bit 3 (value 8) causes a message expiry field to be included in  mapping probes.

Normally the  attribute only appears in XML or JSON format logs if there is expiry date information to log. As of MS 8.0.2.3, setting bit 5 (value 32) will cause the attribute to appear unconditionally.

If enabled, the deferred delivery time and message expiry time fields appear immediately after the tracking ID field and immediately prior to the message ID field.

See also:
 * Transaction logging MTA options
 * log_format MTA Option
 * futurerelease Option
 * deferred Option
 * MTA transaction logging
 * log_tracking MTA Option
 * log_message_id MTA Option
 * Triggering effects from transaction logging with LOG_ACTION