spf.meuemail.seg.br has no NS records.
NS records for this zone are defined at meuemail.seg.br.
NS records for this zone are defined at meuemail.seg.br.
Question and response
Question
dig spf.meuemail.seg.br. NS
Answer
The response has no answer records.
Authority
meuemail.seg.br. 1800 SOA carioca.ns.cloudflare.com. dns.cloudflare.com. 2396904301 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0