srv3409.korpdns.net has no CNAME records.
Question and response
Question
dig srv3409.korpdns.net. NS
Answer
The response has no answer records.
Authority
korpdns.net. 3468 SOA falkenstein.ns.korpcloud.com. dns.korpcloud.com. 2026030501 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0