DNS/KnotResolver/d.qmail.jp/2/res-logについて、ここに記述してください。 

> [plan] plan 'a.b.c.d.qmail.jp.' type 'A'
[resl]   => root priming query
[plan]   plan '.' type 'NS'
[resl]     => querying: '192.112.36.4' score: 10 zone cut: '.' m12n: '.' type: 'NS'
[iter]     <= rcode: NOERROR
[resl]   => querying: '198.41.0.4' score: 10 zone cut: '.' m12n: 'Jp.' type: 'NS'
[iter]   <= referral response, follow
[resl]   => querying: '203.119.1.1' score: 10 zone cut: 'jp.' m12n: 'qMaIl.JP.' type: 'NS'
[iter]   <= referral response, follow
[resl]   => querying: '14.192.44.5' score: 10 zone cut: 'qmail.jp.' m12n: 'D.QMaiL.JP.' type: 'NS'
[iter]   <= rcode: NXDOMAIN
[iter]   <= found cut, retrying with non-minimized name
[ pc ]   => answer cached for TTL=900
[resl]   => querying: '14.192.44.5' score: 58 zone cut: 'qmail.jp.' m12n: 'a.B.C.D.qmaiL.jp.' type: 'A'
[iter]   <= referral response, follow
[resl]   => querying: '14.192.44.29' score: 10 zone cut: 'a.b.c.d.qmail.jp.' m12n: 'A.b.c.d.qmaIl.jp.' type: 'A'
[iter]   <= rcode: NOERROR
[ pc ]   => answer cached for TTL=900
[resl] finished: 4, queries: 2, mempool: 16392 B
[plan] plan 'd.qmail.jp.' type 'A'
[resl]   => querying: '14.192.44.5' score: 53 zone cut: 'qmail.jp.' m12n: 'd.QMaIL.jP.' type: 'A'
[iter]   <= rcode: NXDOMAIN
[ pc ]   => answer cached for TTL=900
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'd.qmail.jp.' type 'A'
[ pc ]   => satisfied from cache
[iter]   <= rcode: NXDOMAIN
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'c.d.qmail.jp.' type 'A'
[resl]   => querying: '14.192.44.5' score: 57 zone cut: 'qmail.jp.' m12n: 'c.D.qmAiL.jp.' type: 'A'
[iter]   <= rcode: NOERROR
[ pc ]   => answer cached for TTL=900
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'a.b.c.d.qmail.jp.' type 'A'
[resl]   => querying: '14.192.44.5' score: 60 zone cut: 'qmail.jp.' m12n: 'D.qMAiL.jP.' type: 'NS'
[iter]   <= rcode: NXDOMAIN
[iter]   <= found cut, retrying with non-minimized name
[ pc ]   => answer cached for TTL=900
[resl]   => querying: '14.192.44.5' score: 58 zone cut: 'qmail.jp.' m12n: 'a.b.C.d.qmAiL.JP.' type: 'A'
[iter]   <= referral response, follow
[resl]   => querying: '14.192.44.29' score: 74 zone cut: 'a.b.c.d.qmail.jp.' m12n: 'a.b.C.d.QmAIL.JP.' type: 'A'
[iter]   <= rcode: NOERROR
[ pc ]   => answer cached for TTL=900
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'd.qmail.jp.' type 'NS'
[ pc ]   => satisfied from cache
[iter]   <= rcode: NXDOMAIN
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'c.d.qmail.jp.' type 'TXT'
[resl]   => querying: '14.192.44.5' score: 58 zone cut: 'qmail.jp.' m12n: 'c.D.qMAIl.jp.' type: 'TXT'
[iter]   <= rcode: NOERROR
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'c.d.qmail.jp.' type 'A'
[resl]   => querying: '14.192.44.5' score: 68 zone cut: 'qmail.jp.' m12n: 'C.D.qMail.jp.' type: 'A'
[iter]   <= rcode: NOERROR
[ pc ]   => answer cached for TTL=900
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'c.d.qmail.jp.' type 'A'
[ pc ]   => satisfied from cache
[iter]   <= rcode: NOERROR
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'c.d.qmail.jp.' type 'TXT'
[ rc ]   => satisfied from cache
[iter]   <= rcode: NOERROR
[resl] finished: 4, queries: 1, mempool: 16392 B
[plan] plan 'b.c.d.qmail.jp.' type 'TXT'
[resl]   => querying: '14.192.44.5' score: 65 zone cut: 'qmail.jp.' m12n: 'B.c.D.qmail.jp.' type: 'TXT'
[iter]   <= rcode: NOERROR
[resl] finished: 4, queries: 1, mempool: 16392 B