Question and response
Question
dig _nb2.emailcampaigns.net. TXT
Answer
_nb2.emailcampaigns.net. 3600 TXT "v=spf1 ip4:65.98.250.0/24 ip4:65.98.206.0/24 ip4:65.98.214.0/24 ip4:65.98.146.0/24 ip4:65.98.228.0/24 ip4:69.63.150.0/23 ip4:185.131.228.0/25 ip4:185.131.228.128/25 ip4:185.131.229.0/25 -all"
Authority
emailcampaigns.net. 172800 NS ns-1321.awsdns-37.org.
emailcampaigns.net. 172800 NS ns-1797.awsdns-32.co.uk.
emailcampaigns.net. 172800 NS ns-389.awsdns-48.com.
emailcampaigns.net. 172800 NS ns-640.awsdns-16.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0