DNS/unbound/log/nonexist.qmail.jpについて、ここに記述してください。

qmail.jp NS+A はキャッシュにあるという前提で：

Dec 22 08:31:19 tmaeno unbound: [1076:0] info: validator operate: query nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] debug: iterator[module 1] operate: extstate:module_state_initial event:module_event_pass
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: resolving nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: resolving (init part 2):  nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: resolving (init part 3):  nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: processQueryTargets: nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: sending query: nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] debug: sending to target: <qmail.jp.> 14.192.44.5#53
Dec 22 08:31:19 tmaeno unbound: [1076:0] debug: cache memory msg=76666 rrset=72319 infra=26282 val=35818
Dec 22 08:31:19 tmaeno unbound: [1076:0] debug: iterator[module 1] operate: extstate:module_wait_reply event:module_event_reply
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: iterator operate: query nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: response for nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: reply from <qmail.jp.> 14.192.44.5#53
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: query response was NXDOMAIN ANSWER
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: finishing processing for nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] debug: validator[module 0] operate: extstate:module_wait_module event:module_event_moddone
Dec 22 08:31:19 tmaeno unbound: [1076:0] info: validator operate: query nonexist.qmail.jp. A IN
Dec 22 08:31:19 tmaeno unbound: [1076:0] debug: cache memory msg=76809 rrset=72513 infra=26282 val=35818