<SIZE> bytes, 1+1+2+4 records, response, authoritative, noerror
query: MX a.z.w.example
answer: a.z.w.example 3600 MX 1 ai.example
authority: example 3600 NS ns1.example
authority: example 3600 NS ns2.example
additional: ai.example 3600 A 192.0.2.9
additional: ai.example 3600 AAAA 2001:db8::f00:baa9
additional: ns1.example 3600 A 192.0.2.1
additional: ns2.example 3600 A 192.0.2.2
