sldc43omcspoc01.oracleoutsourcing.com has no MX records.
Question and response
Question
dig sldc43omcspoc01.oracleoutsourcing.com. MX
Answer
The response has no answer records.
Authority
oracleoutsourcing.com. 900 SOA ns1.p201.dns.oraclecloud.net. hostmaster.oracle.com. 2026020201 10800 300 1209600 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0