SOA
Start of Authority
Primary NS
Mailbox
trongtan.yahoo.com
Serial
2025031205
Refresh
7200
Retry
7200
Expire
172800
Minimum TTL
38400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all
A