SOA
Start of Authority
Primary NS
Mailbox
domain.sejongtelecom.net
Serial
2025051501
Refresh
21600
Retry
1800
Expire
1209600
Minimum TTL
86400
NS
Nameservers
TXT
TXT Records
v=spf1 ip4:121.133.156.20 ip4:203.248.67.13 ip4:203.248.67.14 ip4:203.248.67.120 ip4:1.232.5.1 include:_spf.dooray.co.kr ~all
A