SOA
Start of Authority
Primary NS
Mailbox
root.quybongsen.org
Serial
2025072505
Refresh
1200
Retry
600
Expire
1209600
Minimum TTL
3600
MX
Mail Exchangers
TXT
TXT Records
v=spf1 a mx ip4:14.161.0.146 include:sonca.com.vn ~all
MS=ms69687009
v=spf1 include:spf.maychuemail.com ~all
A