SOA
Start of Authority
Primary NS
Mailbox
admin.matbao.com
Serial
2023080701
Refresh
18000
Retry
1800
Expire
604800
Minimum TTL
1800
MX
Mail Exchangers
TXT
TXT Records
v=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all
MS=ms59994052
A