Question and response
Question
dig cluster01.porcupine-mail.com. TXT
Answer
cluster01.porcupine-mail.com. 3600 TXT "v=spf1 ip4:188.138.124.234 ip4:207.38.88.35 -all"
Authority
porcupine-mail.com. 172800 NS ns-1420.awsdns-49.org.
porcupine-mail.com. 172800 NS ns-1725.awsdns-23.co.uk.
porcupine-mail.com. 172800 NS ns-4.awsdns-00.com.
porcupine-mail.com. 172800 NS ns-824.awsdns-39.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0