Question and response
Question
dig smtp-backup1.portunity.de. AAAA
Answer
smtp-backup1.portunity.de. 14400 AAAA 2a02:a00:0:0:2:0:0:54
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 768, xrcode 0, version 0, flags 0