acf248bbd128.dfw1.oracleemaildelivery.com has no NS records.
NS records for this zone are defined at dfw1.oracleemaildelivery.com.
NS records for this zone are defined at dfw1.oracleemaildelivery.com.
Question and response
Question
dig acf248bbd128.dfw1.oracleemaildelivery.com. NS
Answer
The response has no answer records.
Authority
dfw1.oracleemaildelivery.com. 300 SOA ns1.p202.dns.oraclecloud.net. hostmaster.dfw1.oracleemaildelivery.com. 184676 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0