Question and response
Question
dig smtp-backup2-2.portunity.de. AAAA
Answer
smtp-backup2-2.portunity.de. 14400 AAAA 2a03:4000:f:5b9:0:0:0:25
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 768, xrcode 0, version 0, flags 0