Question and response
Question
dig j.spf.avature.net. TXT
Answer
j.spf.avature.net. 300 TXT "v=spf1 ip4:3.224.5.44/32 ip4:74.217.56.247/32 ip4:74.217.56.248/32 ip4:38.133.183.176/28 ip4:38.125.102.176/28 ip4:154.59.120.176/28 ip4:154.61.73.176/28 -all"
Authority
spf.avature.net. 172800 NS ns-1453.awsdns-53.org.
spf.avature.net. 172800 NS ns-1699.awsdns-20.co.uk.
spf.avature.net. 172800 NS ns-454.awsdns-56.com.
spf.avature.net. 172800 NS ns-855.awsdns-42.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0