md1.csmaildealer.com has no NS records.
NS records for this zone are defined at csmaildealer.com.
NS records for this zone are defined at csmaildealer.com.
Question and response
Question
dig md1.csmaildealer.com. NS
Answer
The response has no answer records.
Authority
csmaildealer.com. 3600 SOA asns1.customer.ne.jp. n-wata.nttpc.co.jp. 1436157700 3600 1800 3628800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0