Question and response
Question
dig r3.rpost.net. TXT
Answer
r3.rpost.net. 300 TXT "v=spf1 ip4:3.101.2.139/32"
Authority
r3.rpost.net. 172800 NS ns-1345.awsdns-40.org.
r3.rpost.net. 172800 NS ns-143.awsdns-17.com.
r3.rpost.net. 172800 NS ns-1618.awsdns-10.co.uk.
r3.rpost.net. 172800 NS ns-685.awsdns-21.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0