Question and response
Question
dig _spf0000004.tangocard.com. TXT
Answer
_spf0000004.tangocard.com. 300 TXT "v=spf1 ip4:205.139.110.0/23 ip4:52.38.191.241/32 ip4:108.179.144.0/20 ip4:172.253.112.0/20 ip4:129.148.164.0/25 ip4:129.148.215.0/25 ip4:147.154.126.0/24 ip4:147.154.191.0/24 ip4:155.248.148.0/25 ip4:139.177.108.0/25 ip4:207.211.132.0/25 ip4:158.247.100.0" "/25 ip4:192.22.96.128/25 ip4:192.22.32.128/25 ip4:129.149.118.0/25 ip4:129.149.100.0/25 ip4:155.248.140.0/25 ip4:129.148.135.0/25 ip4:129.148.148.0/25 include:_spf0000005.tangocard.com ~all"
Authority
_spf0000004.tangocard.com. 172800 NS ns-1400.awsdns-47.org.
_spf0000004.tangocard.com. 172800 NS ns-1956.awsdns-52.co.uk.
_spf0000004.tangocard.com. 172800 NS ns-334.awsdns-41.com.
_spf0000004.tangocard.com. 172800 NS ns-775.awsdns-32.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0