<SIZE> bytes, 1+2+3+9 records, response, authoritative, noerror
query: MX x.w.example
answer: x.w.example 3600 MX 1 xx.example
answer: x.w.example 3600 RRSIG MX 7 3 3600 <TIME> <TIME> 44495 example <SIG>
authority: example 3600 NS ns1.example
authority: example 3600 NS ns2.example
authority: example 3600 RRSIG NS 7 1 3600 <TIME> <TIME> 44495 example <SIG>
additional: . 0 OPT 512 0 0 8000
additional: xx.example 3600 A 192.0.2.10
additional: xx.example 3600 AAAA 2001:db8::f00:baaa
additional: xx.example 3600 RRSIG A 7 2 3600 <TIME> <TIME> 44495 example <SIG>
additional: xx.example 3600 RRSIG AAAA 7 2 3600 <TIME> <TIME> 44495 example <SIG>
additional: ns1.example 3600 A 192.0.2.1
additional: ns1.example 3600 RRSIG A 7 2 3600 <TIME> <TIME> 44495 example <SIG>
additional: ns2.example 3600 A 192.0.2.2
additional: ns2.example 3600 RRSIG A 7 2 3600 <TIME> <TIME> 44495 example <SIG>