Question and response
Question
dig spf-77.mailgrid.net.br. TXT
Answer
spf-77.mailgrid.net.br. 300 TXT "v=spf1 ip4:52.0.73.6 ip4:34.196.63.7 ip4:35.169.215.116 ip4:44.213.204.41 ip4:54.210.86.143 ip4:3.212.168.207 ip4:52.20.204.36 ip4:44.213.153.102 ip4:50.19.232.140 ip4:34.198.209.148 ip4:3.223.33.162 ip4:54.94.205.123 include:spf-77b.mailgrid.net.br -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