Question and response
Question
dig spf17.mailgrid.com.br. TXT
Answer
spf17.mailgrid.com.br. 300 TXT "v=spf1 ip4:51.79.116.56 ip4:54.94.206.174 ip4:15.204.247.41 ip4:135.148.78.138 ip4:135.148.73.250 ip4:135.148.73.209 ip4:18.230.185.31 ip4:54.232.1.72 ip4:51.79.10.26 ip4:149.56.133.64 ip4:18.228.25.46 ip4:198.27.89.10 ip4:51.79.107.136 -all"
Authority
mailgrid.com.br. 3600 NS ns-1325.awsdns-37.org.
mailgrid.com.br. 3600 NS ns-177.awsdns-22.com.
mailgrid.com.br. 3600 NS ns-1838.awsdns-37.co.uk.
mailgrid.com.br. 3600 NS ns-889.awsdns-47.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0