Question and response
Question
dig _spf.kcac-smtp.kakaoenterprise.com. TXT
Answer
_spf.kcac-smtp.kakaoenterprise.com. 3600 TXT "v=spf1 ip4:210.109.82.124 ip4:210.109.83.160 ip4:210.109.80.51 ip4:210.109.80.145 ip4:210.109.80.97 ip4:210.109.52.237 ip4:210.109.14.242 ip4:210.109.15.223 ip4:210.109.15.22 ip4:210.109.53.218 ip4:210.109.54.250 ip4:210.109.54.154 ~all"
Authority
kakaoenterprise.com. 172800 NS ns-1.awsdns-00.com.
kakaoenterprise.com. 172800 NS ns-1351.awsdns-40.org.
kakaoenterprise.com. 172800 NS ns-890.awsdns-47.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0