mx.dominioabsoluto.net has no NS records.
NS records for this zone are defined at dominioabsoluto.net.
NS records for this zone are defined at dominioabsoluto.net.
Question and response
Question
dig mx.dominioabsoluto.net. NS
Answer
The response has no answer records.
Authority
dominioabsoluto.net. 86400 SOA ns3.acens.net. hostmaster.ns3.acens.net. 1772829988 14400 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0