SOA
Start of Authority
Primary NS
Mailbox
administrator.dynu.com
Serial
16
Refresh
3600
Retry
900
Expire
604800
Minimum TTL
300
NS
Nameservers
TXT
TXT Records
v=spf1 include:spf.protection.outlook.com -all
v=DMARC1; p=quarantine; sp=quarantine; adkim=s; aspf=s; pct=100