SOA
Start of Authority
Primary NS
Mailbox
postmaster.ntbkorea.com
Serial
20130226
Refresh
10800
Retry
3600
Expire
3600000
Minimum TTL
43200
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 ip4:222.122.213.196 ip4:183.111.141.98 ip4:211.231.106.157 ip4:211.231.106.156 ~all
v=spf1 include:_spf.daum.net ~all