DMARC Generator

Pick your options and copy the record into a TXT at _dmarc.yourdomain.com.

Policy (p)

Subdomain policy (sp)

Aggregate reports (rua)

Forensic reports (ruf)

Percentage (pct)

DKIM alignment

SPF alignment

Your DMARC record

Host

_dmarc.yourdomain.com

Start with p=none to monitor without affecting delivery, then tighten to quarantine and reject once your reports look clean.