Question and response
Question
dig spf.playbackmail.com. TXT
Answer
spf.playbackmail.com. 300 TXT "v=spf1 include:spf1.playbackmail.com include:spf2.playbackmail.com include:spf3.playbackmail.com ip4:13.113.119.162 ip4:54.251.254.39 ip4:18.178.140.69 ip4:13.115.99.155 ip4:52.194.84.147 ip4:13.114.131.28 ip4:18.180.73.34 ip4:18.178.66.65" " ip4:54.249.143.135 ip4:13.112.75.78 ip4:13.230.152.122 ip4:13.230.121.206 ip4:54.65.226.48 ip4:54.92.65.206 ip4:13.112.150.85 ip4:13.112.221.60 ip4:13.113.255.154 ip4:13.113.47.175 ip4:52.68.15.19 ~all"
Authority
playbackmail.com. 172800 NS ns-1383.awsdns-44.org.
playbackmail.com. 172800 NS ns-1640.awsdns-13.co.uk.
playbackmail.com. 172800 NS ns-406.awsdns-50.com.
playbackmail.com. 172800 NS ns-722.awsdns-26.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0