Question and response
Question
dig smtp-v6-c.domusarg.com. AAAA
Answer
smtp-v6-c.domusarg.com. 300 AAAA 2607:5300:61:c69:0:0:0:c
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0