Question and response
Question
dig mailgrid.com.br. TXT
Answer
mailgrid.com.br. 300 TXT "v=spf1 ip4:15.229.188.127 ip4:18.228.229.224 ip4:167.172.150.101/32 ip4:18.229.236.25/32 ip4:18.229.34.136 ip4:167.114.150.29 ip4:18.229.240.28 ip4:51.81.109.61 include:spf.mailgrid.com.br -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