Question and response
Question
dig _netblocks.act-on.net. TXT
Answer
_netblocks.act-on.net. 86400 TXT "v=spf1 ip4:72.46.76.0/22 ip4:204.156.176.0/23 ip4:204.156.178.0/24 ip4:209.222.65.0/24 ip4:209.222.66.0/23 ip4:209.162.194.0/24 ip4:216.41.143.0/24 ip4:54.194.14.170 ip4:54.93.34.201 ip4:35.183.73.63 -all"
Authority
act-on.net. 172800 NS ns-1336.awsdns-39.org.
act-on.net. 172800 NS ns-1580.awsdns-05.co.uk.
act-on.net. 172800 NS ns-720.awsdns-26.net.
act-on.net. 172800 NS ns-79.awsdns-09.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0