SenderReady
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Free DNS utility

Build a cautious DMARC record candidate

Draft a starter DMARC TXT value for monitoring, alignment, subdomain policy, and aggregate reports. Use it to brief your DNS owner, then scan the domain before publishing.

DMARC TXT builder

Draft the DNS record

Monitoring

Publish only after review

DNS host
_dmarc.example.com
TXT value
v=DMARC1; p=none; rua=mailto:dmarc-reports@example.com; adkim=r; aspf=r
  • Confirm dmarc-reports@example.com exists or routes to a DMARC report processor before publishing.
  • Run the domain through the scanner before publishing this DNS change.

How to use the candidate

Publish DMARC only with the person who controls DNS and the sending platforms for the domain. The generator can assemble a syntactically cautious TXT value, but it cannot see your actual message headers, sender inventory, provider dashboards, or aggregate DMARC reports.

This is a candidate, not a deliverability or compliance guarantee. Use a monitoring policy first unless your legitimate senders and alignment have already been reviewed.

DMARC generator FAQ

Should I start with p=none?

In most first-time setups, yes. Monitoring lets you collect aggregate reports and find legitimate senders before stricter policy choices.

When should I use quarantine or reject?

Only after SPF or DKIM alignment is known for legitimate mail and reports show that enforcement will not block expected senders.

Can SenderReady publish the DNS record for me?

No. SenderReady provides a candidate, scan evidence, and a fix plan. Your DNS owner or email administrator should publish and verify the final DNS change.