Question and response
Question
dig gmail-smtp-in.l.google.COM. AAAA
Answer
gmail-smtp-in.l.google.COM. 300 AAAA 2a00:1450:4001:c21:0:0:0:1b
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0