DMARC record builder

Build a DMARC TXT record for _dmarc with policy, alignment, reporting URIs, and pct.

From domain p (policy) sp (subdomains, optional) np (non-existent subdomains, optional) adkim aspf pct fo ri seconds rua ruf (optional)

Built record

Or paste a record to check instead

Check

Where it goes

Publish a TXT record at _dmarc.example.com. p=none monitors. quarantine and reject ask receivers to act on mail that fails DMARC. rua is where aggregate reports are mailed.