spfrerouting.xink.io has no CNAME records.
Question and response
Question
dig spfrerouting.xink.io. NS
Answer
The response has no answer records.
Authority
xink.io. 196 SOA ns.dandomain.dk. hostmaster.dandomain.dk. 2026022501 14400 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0