_dmarc.consultisp.com.br has no CNAME records.
Question and response
Question
dig _dmarc.consultisp.com.br. NS
Answer
The response has no answer records.
Authority
consultisp.com.br. 282 SOA ns1.consultisp.com.br. noc.consultisp.com.br. 2025110310 3600 900 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0