mail.main0.ezpublishing.com has no NS records.
NS records for this zone are defined at main0.ezpublishing.com.
NS records for this zone are defined at main0.ezpublishing.com.
Question and response
Question
dig mail.main0.ezpublishing.com. NS
Answer
The response has no answer records.
Authority
main0.ezpublishing.com. 600 SOA ns.ezpublishing.com. hostmaster.ezpublishing.com. 2018082000 3600 3600 3600000 600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0