relay.skillport.com has no NS records.
NS records for this zone are defined at skillport.com.
NS records for this zone are defined at skillport.com.
Question and response
Question
dig relay.skillport.com. NS
Answer
The response has no answer records.
Authority
skillport.com. 300 SOA bos-gtm01.skillport.com. hostingdomainadministrators.skillsoft.com. 2006161142 3600 1800 1209600 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0