hosting.ethtelecom.com.br has no MX records.
Question and response
Question
dig hosting.ethtelecom.com.br. MX
Answer
The response has no answer records.
Authority
ethtelecom.com.br. 10800 SOA ns1.ethtelecom.com.br. wesley.ethtelecom.com.br. 2025080602 10800 3600 1209600 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0