SOA
Start of Authority
Primary NS
Mailbox
admin.matbao.com
Serial
2025121202
Refresh
7200
Retry
1800
Expire
1209600
Minimum TTL
3600
NS
Nameservers
TXT
TXT Records
v=spf1 +mx +ip4:103.200.23.236 +include:_spf.mta.vietnix.com +include:emailserver.vn +include:spf.protection.outlook.com -all