Question and response
Question
dig spf25.mailgrid.net.br. TXT
Answer
spf25.mailgrid.net.br. 300 TXT "v=spf1 include:spf109.mailgrid.net.br ip4:142.44.148.164 ip4:198.27.89.10 ip4:51.79.35.106 ip4:54.39.39.44 ip4:66.70.175.248 ip4:198.27.89.147 ip4:198.27.89.26 ip4:51.79.116.58 ip4:54.39.39.45 ip4:51.79.116.57 ip4:54.39.164.159 ip4:54.39.164.168 -all"
Authority
mailgrid.net.br. 172800 NS ns-1289.awsdns-33.org.
mailgrid.net.br. 172800 NS ns-1608.awsdns-09.co.uk.
mailgrid.net.br. 172800 NS ns-437.awsdns-54.com.
mailgrid.net.br. 172800 NS ns-945.awsdns-54.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0