parkmail.dynadot.com has no CNAME records.
Question and response
Question
dig parkmail.dynadot.com. NS
Answer
The response has no answer records.
Authority
dynadot.com. 1800 SOA magdalena.ns.cloudflare.com. dns.cloudflare.com. 2398086919 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0