mx4.emailarray.com has no NS records.
NS records for this zone are defined at emailarray.com.
NS records for this zone are defined at emailarray.com.
Question and response
Question
dig mx4.emailarray.com. NS
Answer
The response has no answer records.
Authority
emailarray.com. 60 SOA ns1.emailarray.com. postmaster.emailarray.com. 2026021502 60 3000 9999999 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0