If the message class is unset (for example, if the query has no question section), return FORMERR, not REFUSED.
If the message class is unset (for example, if the query has no question
section), return FORMERR, not REFUSED.

each/bind9-collab,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,each/bind9-collab,each/bind9-collab