mail.comcap.nl has no CNAME records.
Question and response
Question
dig mail.comcap.nl. NS
Answer
The response has no answer records.
Authority
comcap.nl. 225 SOA ns1.dns-parking.com. dns.hostinger.com. 2026022601 10000 2400 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0