Question and response
Question
dig smtp2.de.opalstack.com. AAAA
Answer
smtp2.de.opalstack.com. 3600 AAAA 2a01:7e01:0:0:f03c:92ff:fe05:ba9b
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0