SOA
Start of Authority
Primary NS
Mailbox
support.aramschool.co.kr
Serial
2023012601
Refresh
10800
Retry
3600
Expire
604800
Minimum TTL
60
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:spf1.whoisworks.com ip4:221.139.49.3 ip4:221.139.49.6 ~all
A