mail.xneelo.net has no CNAME records.
Question and response
Question
dig mail.xneelo.net. NS
Answer
The response has no answer records.
Authority
xneelo.net. 10800 SOA ns1.host-h.net. postmaster.xneelo.net. 2026030501 86400 1800 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0