- /* If the message has been on the queue longer than the recorded time
- of failure, use the message's age instead. This can happen when some
- messages can be delivered and others cannot; a successful delivery will
- reset the first_failed time, and this can lead to a failing message
- being retried too often. */
+ /* For a non-host error, if the message has been on the queue longer
+ than the recorded time of failure, use the message's age instead. This
+ can happen when some messages can be delivered and others cannot; a
+ successful delivery will reset the first_failed time, and this can lead
+ to a failing message being retried too often. */