mx.pensions.mobi has no NS records.
NS records for this zone are defined at pensions.mobi.
NS records for this zone are defined at pensions.mobi.
Question and response
Question
dig mx.pensions.mobi. NS
Answer
The response has no answer records.
Authority
pensions.mobi. 3600 SOA dns.pensions.mobi. hostmaster.pensions.mobi. 1241100572 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0