Question and response
Question
dig _spf3.yonsei.ac.kr. TXT
Answer
_spf3.yonsei.ac.kr. 145 TXT "v=spf1 include:spf.protection.outlook.com ip4:175.106.89.217 ip4:223.130.174.82 ip4:223.130.174.102 ip4:101.79.8.205 ip4:165.132.16.32 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0