mail-oci.servers.konviva.com.br has no MX records.
Question and response
Question
dig mail-oci.servers.konviva.com.br. MX
Answer
The response has no answer records.
Authority
konviva.com.br. 1800 SOA ns1.p68.dns.oraclecloud.net. hostmaster.konviva.com.br. 2024081848 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0