Question and response
Question
dig spf-66.mailgrid.net.br. TXT
Answer
spf-66.mailgrid.net.br. 300 TXT "v=spf1 include:spf-66e.mailgrid.net.br ip4:51.222.110.3 ip4:66.70.255.58 ip4:142.44.148.164 ip4:54.39.167.103 ip4:142.44.199.14 ip4:15.235.58.194 ip4:149.56.195.104 ip4:144.217.114.163 ip4:142.44.187.128 ip4:149.56.88.102 ip4:142.44.199.10 -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