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DMARC Record Builder

Generate a DMARC TXT record with policy, alignment and reporting addresses.

  • Runs in your browser
  • No upload on server
  • Free, forever
  1. Enter details
  2. Run check
  3. Copy result
How this works
  1. 1
    Choose your policy

    Pick none, quarantine or reject — start with 'none' if you're new to DMARC.

  2. 2
    Add report addresses

    Where should aggregate and forensic reports be emailed? Add rua/ruf here.

  3. 3
    Copy the DNS record

    Paste the generated TXT record into your DNS provider under _dmarc.

Watch: form → DMARC DNS record
Policy (p)

Start with none to monitor, then move to quarantine and reject.

Subdomain policy (sp, optional)
TXT record
v=DMARC1; p=none; aspf=r; adkim=r; rua=mailto:dmarc@example.com

Publish as a TXT record at host _dmarc on your domain.

How this works
  • Pick a policy — start with none to observe before enforcing.
  • Add the inbox where you want aggregate reports delivered.
  • Copy the TXT record into the _dmarc host in DNS.
Built locally — no email sending or DNS lookup.

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