webmail.pine.nl has no CNAME records.
Question and response
Question
dig webmail.pine.nl. NS
Answer
The response has no answer records.
Authority
pine.nl. 3496 SOA ns1.dnszones.eu. hostmaster.dnszones.eu. 2025052245 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0