custommail.hyperoffice.us has no NS records.
NS records for this zone are defined at hyperoffice.us.
NS records for this zone are defined at hyperoffice.us.
Question and response
Question
dig custommail.hyperoffice.us. NS
Answer
The response has no answer records.
Authority
hyperoffice.us. 1800 SOA curitiba.ns.porkbun.com. dns.cloudflare.com. 2396349070 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0