mailserver02.cablecolor.net has no CNAME records.
Question and response
Question
dig mailserver02.cablecolor.net. NS
Answer
The response has no answer records.
Authority
cablecolor.net. 138 SOA ns1.cablecolor.hn. administrador.cablecolor.hn. 2026021201 28800 7200 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0