mx01.telium.net.br has no MX records.
Question and response
Question
dig mx01.telium.net.br. MX
Answer
The response has no answer records.
Authority
telium.net.br. 3600 SOA ns1.telium.com.br. suporte.telium.com.br. 2026021805 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0