mx.cruiseandvacationperks.com has no NS records.
NS records for this zone are defined at cruiseandvacationperks.com.
NS records for this zone are defined at cruiseandvacationperks.com.
Question and response
Question
dig mx.cruiseandvacationperks.com. NS
Answer
The response has no answer records.
Authority
cruiseandvacationperks.com. 3600 SOA dns.cruiseandvacationperks.com. hostmaster.cruiseandvacationperks.com. 1221245679 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0