spf.postal.webgenium.com.br has no CNAME records.
Question and response
Question
dig spf.postal.webgenium.com.br. NS
Answer
The response has no answer records.
Authority
webgenium.com.br. 245 SOA ns01.webgenium.com.br. hostmaster.datacentro.com.br. 2026022702 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0