Question and response
Question
dig spf-oi.oi.com.br. TXT
Answer
spf-oi.oi.com.br. 900 TXT "v=spf1 ip4:179.124.32.224/28 ip4:177.154.139.160/27 ip4:200.143.181.192/26 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0