Question and response
Question
dig spf.digitalinsight.com. TXT
Answer
spf.digitalinsight.com. 300 TXT "v=spf1 exists:%{i}._spf.sparkpostmail.com ip4:63.117.120.96/27 ip4:69.38.149.224/27 ip4:208.252.57.192/27 -all"
Authority
digitalinsight.com. 3600 NS edns123.ultradns.biz.
digitalinsight.com. 3600 NS edns123.ultradns.com.
digitalinsight.com. 3600 NS edns123.ultradns.net.
digitalinsight.com. 3600 NS edns123.ultradns.org.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0