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Free email DNS tool

DMARC record generator

Generate a DMARC TXT record for monitoring, quarantine, or reject policies before testing email delivery.

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Generated DNS TXT value

DMARC record

Publish this TXT value at _dmarc.yourdomain.com. Start with p=none when monitoring a new domain.

p=none
TXT value
v=DMARC1; p=none; sp=none; pct=100; adkim=r; aspf=r; rua=mailto:dmarc-reports@example.com

When this helps

Use this generator when setting up a sender domain, custom-domain testing workflow, or staging email environment that needs SPF, DKIM, and DMARC alignment.

Recommended rollout

  1. Start with p=none and collect reports.
  2. Fix SPF and DKIM alignment issues.
  3. Move to quarantine for partial enforcement.
  4. Use reject only after monitoring is stable.

Related tools

TempMailito angle

After DNS setup, send safe test messages to temporary inboxes and inspect headers to confirm authentication behavior.

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FAQ

DMARC generator questions

Where do I publish a DMARC record?

Publish the generated TXT value at _dmarc.yourdomain.com in DNS.

Which DMARC policy should I start with?

For a new setup, start with p=none to monitor reports before moving to quarantine or reject.

Does DMARC replace SPF and DKIM?

No. DMARC uses SPF and DKIM alignment results to decide how receivers should handle failing messages.