Question and response
Question
dig spf-oiint.oi.com.br. TXT
Answer
spf-oiint.oi.com.br. 900 TXT "v=spf1 a:oiint-mta-02.oi.com.br a:oiint-mta-03.oi.com.br a:oiint-mta-04.oi.com.br a:oiint-mta-05.oi.com.br ip4:187.31.0.0/24 ip4:187.31.64.0/24 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0