spf1.itadel.dk has no CNAME records.
Question and response
Question
dig spf1.itadel.dk. NS
Answer
The response has no answer records.
Authority
itadel.dk. 638 SOA authns001.yacn.dk. hostmaster.itrelation.dk. 2026010901 14400 7200 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0