opc.oracleoutsourcing.com has no MX records.
Question and response
Question
dig opc.oracleoutsourcing.com. MX
Answer
The response has no answer records.
Authority
opc.oracleoutsourcing.com. 900 SOA ns1.p201.dns.oraclecloud.net. hostmaster.oracle.com. 2026022303 10800 3600 604800 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0