Question and response
Question
dig spf.a8.net. TXT
Answer
spf.a8.net. 300 TXT "v=spf1 +ip4:52.193.218.172/32 +ip4:54.168.233.204/32 +ip4:52.198.58.239/32 +ip4:52.193.177.128/32 +ip4:54.150.103.164/32 +ip4:158.101.155.146/32 ~all"
Authority
a8.net. 172800 NS ns-124.awsdns-15.com.
a8.net. 172800 NS ns-1261.awsdns-29.org.
a8.net. 172800 NS ns-2044.awsdns-63.co.uk.
a8.net. 172800 NS ns-888.awsdns-47.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0