none: collect evidence
p=none is a valid monitoring policy. It asks for no quarantine or rejection based on DMARC. Aggregate reports can reveal services sending on behalf of your domain.
When checks fail
Free DMARC record checker.
Find the policy behind your domain’s email protection. See whether it asks receivers to monitor, quarantine or reject mail that fails checks, and spot common record mistakes.
Read your published DMARC policy and what it asks of receivers.
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You want to move beyond monitoring. Are you ready?
Many domains begin with p=none to collect reports. Moving to quarantine or reject can help with spoofed mail, but it can also affect a real service that sends for you if its authentication is not aligned.
What should I look for?
The record says p=none, quarantine or reject, and may include an address for reports.
List every legitimate sender, review aggregate reports and test real messages before asking receivers to enforce a stricter policy.
This lookup confirms which policy is published at the exact domain you enter. It cannot tell whether your latest campaign, invoice or support email passes DMARC. Use message headers and reports for that decision.
Understand the policy before changing it.
DMARC helps receivers handle mail that fails authentication alignment. A gradual rollout helps avoid disrupting legitimate senders.
quarantine or reject: enforce carefully
These policies request stronger handling of mail that fails DMARC. Confirm that every legitimate sender aligns before enforcing them; receiver decisions can vary.
Alignment makes the difference
A message needs SPF or DKIM to pass and align with its visible From domain. Record presence alone cannot establish alignment or show that reporting destinations are authorized.
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How to check a DMARC record without guesswork
Read the policy your domain publishes, then use real messages and reports to decide what to change.
Check DMARCFind the policy at _dmarc
Enter the domain you want to check. The DMARC checker reads the TXT policy at _dmarc followed by that exact domain. A record normally begins with v=DMARC1 and includes a p= policy. The example below shows a monitoring policy and an aggregate report destination.
v=DMARC1; p=none; rua=mailto:dmarc@example.com
Example only. Use a reporting address you control; none is a monitoring policy, not an enforcement policy.
Choose monitoring or enforcement with evidence
DMARC stands for Domain-based Message Authentication, Reporting and Conformance. A p=none policy requests monitoring without DMARC-based quarantine or rejection. Policies of quarantine and reject request stronger handling of messages that fail aligned authentication. Receiving services still apply their own rules.
Before tightening the policy, identify your legitimate senders: your email host, website forms, billing service, support desk and newsletter platform. Use aggregate reports and received message headers to check their authentication. Moving directly to reject can affect a legitimate service that has not been configured correctly.
Understand what a DNS policy lookup can show
The record can name reporting destinations and specify alignment settings. Its presence does not prove that a particular message passes, that reports arrive, or that external reporting destinations are authorized.
This tool checks the exact domain you enter. It does not discover inherited parent-domain policies or reproduce a receiver’s full policy discovery. If your mail uses a subdomain, review your provider’s instructions and the relevant parent policies before treating a missing exact-domain record as a failure.
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Good questions. Clear answers.
Before you tighten your policy
Find the details you need, then return to the tool when you’re ready.
Check DMARCIs p=none an error?
No. It is a recognized monitoring policy. It provides visibility without requesting enforcement, and is often a step toward a carefully tested stricter policy.
Does this check inherited subdomain policies?
No. We query _dmarc at the exact domain entered. A subdomain may be covered by a parent-domain policy even when this exact name has no record.
Will DMARC stop all phishing?
No. DMARC helps address spoofing of your domain when receivers enforce it. It does not prevent lookalike domains, display-name impersonation or compromised accounts.
What is the difference between SPF, DKIM and DMARC?
SPF authorizes sending sources and DKIM signs messages. DMARC checks whether a passing SPF or DKIM identity aligns with the visible From domain and publishes the domain’s requested handling policy.
Where do I add a DMARC record?
Add the TXT record at the _dmarc name in the domain’s DNS zone. Your DNS host may expect only _dmarc in the name field, rather than the full domain. Follow that host’s instructions to avoid adding the domain twice.
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