aci177ajh0.mty1.oracleemaildelivery.com has no NS records.
NS records for this zone are defined at mty1.oracleemaildelivery.com.
NS records for this zone are defined at mty1.oracleemaildelivery.com.
Question and response
Question
dig aci177ajh0.mty1.oracleemaildelivery.com. NS
Answer
The response has no answer records.
Authority
mty1.oracleemaildelivery.com. 300 SOA ns1.p68.dns.oraclecloud.net. hostmaster.mty1.oracleemaildelivery.com. 526202 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0