Start with “Do nothing” (monitor), then tighten later.
100% is recommended once you’re confident.
Where daily DMARC summaries go.
Leave blank if you only want aggregate reports.
Your DMARC TXT value
Ready
v=DMARC1; p=quarantine; pct=100
Create a TXT record at host _dmarc (or _dmarc.yourdomain.com) and paste the value above.