mail.indiceco.com has no CNAME records.
Question and response
Question
dig mail.indiceco.com. NS
Answer
The response has no answer records.
Authority
indiceco.com. 10800 SOA ns2.indiceco.com. staff.absomod.com. 2026011901 10800 3600 1209600 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0