postfix.cicbue.com.ar has no NS records.
NS records for this zone are defined at cicbue.com.ar.
NS records for this zone are defined at cicbue.com.ar.
Question and response
Question
dig postfix.cicbue.com.ar. NS
Answer
The response has no answer records.
Authority
cicbue.com.ar. 3600 SOA dns. danielm.cicbue.com. 2025042118 3600 600 1209600 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0