in.ceptro.br has no MX records.
Question and response
Question
dig in.ceptro.br. MX
Answer
The response has no answer records.
Authority
in.ceptro.br. 21600 SOA ns.dns.br. hostmaster.ceptro.br. 2025082149 43200 1800 2419200 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0