Question and response
Question
dig _spf0000002.tangocard.com. TXT
Answer
_spf0000002.tangocard.com. 300 TXT "v=spf1 ip4:198.244.56.112 ip4:198.244.56.113 ip4:198.244.56.114 ip4:198.244.56.115 ip4:207.211.30.0/24 ip4:207.211.31.0/25 ip4:208.46.212.0/23 ip4:216.205.24.0/24 ip4:54.151.53.90/32 ip4:139.180.17.0/24 ip4:143.244.80.0/20 ip4:158.247.16.0/20 ip4:216.139." "64.0/19 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ip4:172.217.32.0/21 ip4:172.253.56.0/21 ip4:129.149.38.0/25 ip4:147.154.32.0/25 include:_spf0000003.tangocard.com ~all"
Authority
_spf0000002.tangocard.com. 172800 NS ns-1374.awsdns-43.org.
_spf0000002.tangocard.com. 172800 NS ns-1908.awsdns-46.co.uk.
_spf0000002.tangocard.com. 172800 NS ns-496.awsdns-62.com.
_spf0000002.tangocard.com. 172800 NS ns-591.awsdns-09.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0