nss.brasilis.com.br has no MX records.
Question and response
Question
dig nss.brasilis.com.br. MX
Answer
The response has no answer records.
Authority
brasilis.com.br. 300 SOA nsp.brasilis.com.br. suportelinux.algartecnologia.com.br. 2023091107 43200 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0