Question and response
Question
dig spf2.xmailer.com.br. TXT
Answer
spf2.xmailer.com.br. 300 TXT "v=spf1 ip4:107.174.231.13 ip4:107.174.231.14 ip4:107.174.231.15 ip4:51.81.75.119 ip4:51.81.75.22 ip4:147.135.112.21 ip4:167.114.34.3 ip4:66.45.233.230 ip4:51.81.94.205 ip4:172.245.185.247 ip4:107.174.235.34 ip4:107.174.235.35 ip4:172.245.185.168 -all"
Authority
xmailer.com.br. 172800 NS ns-1294.awsdns-33.org.
xmailer.com.br. 172800 NS ns-1578.awsdns-05.co.uk.
xmailer.com.br. 172800 NS ns-289.awsdns-36.com.
xmailer.com.br. 172800 NS ns-550.awsdns-04.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0