Question and response
Question
dig spf1.playbackmail.com. TXT
Answer
spf1.playbackmail.com. 300 TXT "v=spf1 ip4:46.137.207.54 ip4:13.230.214.166 ip4:13.230.183.240 ip4:13.230.210.97 ip4:13.115.201.249 ip4:13.115.174.208 ip4:52.199.23.8 ip4:13.231.82.57 ip4:52.192.5.223 ip4:3.114.177.89 ip4:52.192.16.70 ip4:54.251.251.10" " ip4:13.115.28.228 ip4:175.41.147.3 ip4:13.228.244.208 ip4:13.229.10.240 ip4:13.115.11.9 ip4:13.115.168.238 ip4:54.65.254.151 ip4:13.115.223.183 ip4:13.230.53.68 ip4:52.192.239.118 ip4:52.68.199.170 ip4:52.193.149.65 ~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