mout-csbulk.1and1.com has no NS records.
NS records for this zone are defined at 1and1.com.
NS records for this zone are defined at 1and1.com.
Question and response
Question
dig mout-csbulk.1and1.com. NS
Answer
The response has no answer records.
Authority
1and1.com. 600 SOA ns-1and1.ui-dns.com. dnsadmin.1und1.de. 2013096365 10800 3600 604800 600
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0