to the contents of a zone made through the :doc:`API <http-api/index>`.
When the ``API-RECTIFY`` value is "1", the zone will be rectified on changes.
-Any other other value means that it will not be rectified.
+Any other other value means that it will not be rectified. If this is not set
+at all, rectifying of the zone depends on the config variable
+:ref:`setting-default-api-rectify`.
.. _metadata-axfr-source: