correo.winet.com.pe has no NS records.
NS records for this zone are defined at winet.com.pe.
NS records for this zone are defined at winet.com.pe.
Question and response
Question
dig correo.winet.com.pe. NS
Answer
The response has no answer records.
Authority
winet.com.pe. 900 SOA ns-1964.awsdns-53.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0