correo1.paradocmail.com has no NS records.
NS records for this zone are defined at paradocmail.com.
NS records for this zone are defined at paradocmail.com.
Question and response
Question
dig correo1.paradocmail.com. NS
Answer
The response has no answer records.
Authority
paradocmail.com. 1800 SOA dora.ns.cloudflare.com. dns.cloudflare.com. 2399154365 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0