SOA
Start of Authority
Primary NS
Mailbox
postmaster.wbstu.com
Serial
20210611
Refresh
10800
Retry
3600
Expire
3600000
Minimum TTL
43200
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
daum-verification: Mz4XEgZ8mu5TL1_EszmSbA00
v=spf1 include:_spf.daum.net ~all
A