mail.abstrahuila.com has no NS records.
NS records for this zone are defined at abstrahuila.com.
NS records for this zone are defined at abstrahuila.com.
Question and response
Question
dig mail.abstrahuila.com. NS
Answer
The response has no answer records.
Authority
abstrahuila.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1763562397 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0