aib22cb128.drz1.oracleemaildelivery.com has no NS records.
NS records for this zone are defined at drz1.oracleemaildelivery.com.
NS records for this zone are defined at drz1.oracleemaildelivery.com.
Question and response
Question
dig aib22cb128.drz1.oracleemaildelivery.com. NS
Answer
The response has no answer records.
Authority
drz1.oracleemaildelivery.com. 300 SOA ns1.p202.dns.oraclecloud.net. hostmaster.drz1.oracleemaildelivery.com. 138630 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0