_dc-mx.30e64bbde5e1.domusarg.com has no AAAA records.
Question and response
Question
dig _dc-mx.30e64bbde5e1.domusarg.com. AAAA
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0