SOA
Start of Authority
Primary NS
Mailbox
hostmaster.hntvn.com
Serial
2025082107
Refresh
14400
Retry
3600
Expire
1209600
Minimum TTL
86400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 a mx ip4:222.255.121.226 a:mail121186.dotvndns.vn mx:hntvn.com include:spf.maychuemail.com -all
A