Question and response
Question
dig spf1.rumbo.com. TXT
Answer
spf1.rumbo.com. 300 TXT "v=spf1 ip4:80.65.9.0/25 ip4:62.212.75.128/26 ip4:185.44.23.186 ip4:2.228.101.128/27 ip4:54.76.15.199 ip4:95.110.170.12/32 ip4:130.117.226.0/28 ip4:78.40.200.36 ip4:213.199.133.69 ip4:52.232.79.71 ~all"
Authority
rumbo.com. 172800 NS ns-1152.awsdns-16.org.
rumbo.com. 172800 NS ns-1694.awsdns-19.co.uk.
rumbo.com. 172800 NS ns-460.awsdns-57.com.
rumbo.com. 172800 NS ns-637.awsdns-15.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0