Question and response
Question
dig spf.oi.com.br. TXT
Answer
spf.oi.com.br. 900 TXT "v=spf1 include:spf-oi.oi.com.br include:spf-oiint.oi.com.br -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0