Question and response
Question
dig spf16.mailgrid.com.br. TXT
Answer
spf16.mailgrid.com.br. 300 TXT "v=spf1 include:spf17.mailgrid.com.br ip4:54.94.153.9 ip4:51.222.173.17 ip4:54.94.205.123 ip4:104.131.9.82 ip4:54.207.128.243 ip4:15.204.246.71 ip4:135.148.72.165 ip4:135.148.72.229 ip4:157.245.13.192 ip4:51.79.33.59 ip4:54.39.39.44 -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