correo.geored.com has no NS records.
NS records for this zone are defined at geored.com.
NS records for this zone are defined at geored.com.
Question and response
Question
dig correo.geored.com. NS
Answer
The response has no answer records.
Authority
geored.com. 1800 SOA dara.ns.cloudflare.com. dns.cloudflare.com. 2398883157 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0