Question and response
Question
dig spf-29.mailgrid.net.br. TXT
Answer
spf-29.mailgrid.net.br. 300 TXT "v=spf1 include:spf-29e.mailgrid.net.br ip4:144.217.80.127 ip4:54.39.161.39 ip4:51.79.1.236 ip4:51.79.44.240 ip4:51.161.7.3 ip4:54.39.78.241 ip4:142.44.218.165 ip4:54.39.154.190 ip4:158.69.109.202 ip4:51.222.173.17 ip4:66.70.164.240 -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