SOA
Start of Authority
Primary NS
Mailbox
root.example.com
Serial
2020102019
Refresh
3600
Retry
3600
Expire
604800
Minimum TTL
86400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 ip4:194.67.104.115 a mx ~all
v=spf1 redirect=_spf.yandex.net