mx.loiberico.com has no NS records.
NS records for this zone are defined at loiberico.com.
NS records for this zone are defined at loiberico.com.
Question and response
Question
dig mx.loiberico.com. NS
Answer
The response has no answer records.
Authority
loiberico.com. 3600 SOA dns.loiberico.com. hostmaster.loiberico.com. 1419622387 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0