smtp-eu.nanolearning.com has no NS records.
NS records for this zone are defined at nanolearning.com.
NS records for this zone are defined at nanolearning.com.
Question and response
Question
dig smtp-eu.nanolearning.com. NS
Answer
The response has no answer records.
Authority
nanolearning.com. 3600 SOA ns1.hyp.net. hostmaster.domeneshop.no. 1771832997 14400 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0