Question and response
Question
dig smtp.arcamax.com. TXT
Answer
smtp.arcamax.com. 300 TXT "v=spf1 ip4:216.174.43.128/26 -all"
Authority
arcamax.com. 172800 NS ns-1333.awsdns-38.org.
arcamax.com. 172800 NS ns-151.awsdns-18.com.
arcamax.com. 172800 NS ns-1963.awsdns-53.co.uk.
arcamax.com. 172800 NS ns-524.awsdns-01.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0