mail.pageconception.com has no CNAME records.
Question and response
Question
dig mail.pageconception.com. NS
Answer
The response has no answer records.
Authority
pageconception.com. 875 SOA ns.inetadmin.eu. root.inetadmin.eu. 1771459200 86400 900 1209600 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0