Question and response
Question
dig cxr.spf.a.cloudfilter.net. TXT
Answer
cxr.spf.a.cloudfilter.net. 300 TXT "v=spf1 ip4:34.195.253.204 ip4:34.195.253.205 ip4:34.195.253.206 ip4:34.195.253.207 ip4:35.164.127.234 ip4:35.164.127.235 ip4:35.164.127.236 ip4:35.164.127.237 ip4:34.195.253.208 ip4:34.195.253.209 ip4:35.164.127.238 ip4:35.164.127.239 ~all"
Authority
spf.a.cloudfilter.net. 172800 NS ns-1005.awsdns-61.net.
spf.a.cloudfilter.net. 172800 NS ns-1480.awsdns-57.org.
spf.a.cloudfilter.net. 172800 NS ns-1662.awsdns-15.co.uk.
spf.a.cloudfilter.net. 172800 NS ns-240.awsdns-30.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0