mail.applynetchile.cl has no CNAME records.
Question and response
Question
dig mail.applynetchile.cl. NS
Answer
The response has no answer records.
Authority
applynetchile.cl. 4823 SOA ns1.zglobalhost.com. hostmaster.zglobalhost.com. 2026020203 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0