hs.oracleindustry.com has no MX records.
Question and response
Question
dig hs.oracleindustry.com. MX
Answer
The response has no answer records.
Authority
hs.oracleindustry.com. 600 SOA ns1.p201.dns.oraclecloud.net. hostmaster.oracle.com. 2026021802 10800 3600 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0