o5.mailrelay.okta.com has no NS records.
NS records for this zone are defined at mailrelay.okta.com.
NS records for this zone are defined at mailrelay.okta.com.
Question and response
Question
dig o5.mailrelay.okta.com. NS
Answer
The response has no answer records.
Authority
okta.com. 300 SOA ns-cloud-a1.googledomains.com. cloud-dns-hostmaster.google.com. 1 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0