SOA
Start of Authority
Primary NS
Mailbox
root.dnsbackup.net
Serial
2026062001
Refresh
36000
Retry
3600
Expire
1209600
Minimum TTL
86400
NS
Nameservers
TXT
TXT Records
v=spf1 a mx include:_spf.nameserver.sk -all
v=spf2.0/mfrom,pra +a +mx include:_spf2.nameserver.sk -all
A