mta-in.v.inova.com.br has no MX records.
Question and response
Question
dig mta-in.v.inova.com.br. MX
Answer
The response has no answer records.
Authority
v.inova.com.br. 1200 SOA dnsc1.penso.com.br. hostmaster.penso.com.br.v.inova.com.br. 2021112301 7200 3600 172800 1200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0