jed1.oracleemaildelivery.com has no MX records.
Question and response
Question
dig jed1.oracleemaildelivery.com. MX
Answer
The response has no answer records.
Authority
jed1.oracleemaildelivery.com. 300 SOA ns1.p68.dns.oraclecloud.net. hostmaster.jed1.oracleemaildelivery.com. 724707 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0