atena.online.dev.br has no MX records.
Question and response
Question
dig atena.online.dev.br. MX
Answer
The response has no answer records.
Authority
online.dev.br. 10 SOA ns.online.dev.br. noc\@online.net.br. 2024111022 1200 1800 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0