mail.rolypolyland.com has no CNAME records.
Question and response
Question
dig mail.rolypolyland.com. NS
Answer
The response has no answer records.
Authority
rolypolyland.com. 263 SOA ns1.kirklanddc.com. admin.rolypolyland.com. 2026011503 86400 10800 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0