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FREE HOSTGRABER TOOL

DMARC Record Checker

Inspect your DMARC policy, reporting destinations and enforcement level.

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UNDERSTAND THE TOOL

What is DMARC Checker?

DMARC tells receivers how to handle messages that fail SPF or DKIM and where to send authentication reports.

Start with monitoring, review reports, then move toward quarantine or reject when legitimate senders are aligned.

READ THE OUTPUT

How to understand your results

Three signals that matter most when interpreting this tool.

01

Policy level

p=none monitors, quarantine sends suspicious mail to spam, and reject blocks failing messages.

02

Alignment

DMARC passes when aligned SPF or DKIM authenticates the same organizational domain.

03

Report addresses

rua and ruf tags identify where aggregate or forensic reports should be delivered.

HOSTGRABER EXPERT GUIDE

Turning authentication data into enforcement

DMARC connects SPF and DKIM to the domain visible in the From header. It also provides aggregate reporting, giving domain owners a view of legitimate and unauthorized sending sources before enforcement is increased.

Begin with p=none and a monitored aggregate-report address. Correct alignment for real senders, then move gradually to quarantine and reject. Subdomain policy, percentage rollout and strict or relaxed alignment can be adjusted for complex organizations.

PRACTICAL GUIDE

Getting a reliable answer from this tool

Email authentication works as a system rather than as isolated records. SPF identifies permitted senders, DKIM proves message integrity and DMARC evaluates alignment against the visible From domain. A technically valid record can still produce poor deliverability if another part of the authentication chain is incomplete.

Use this tool before and after adding a mail platform, CRM, billing application or marketing sender. Keep a record of every authorized source and remove obsolete services so your domain policy stays understandable.

GO FROM DIAGNOSIS TO SOLUTION

Build it better with HostGraber

Found a configuration problem or planning your next deployment? These HostGraber services are the most relevant next steps for this tool.

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THREE SIMPLE STEPS

Use DMARC Checker in seconds

01

Enter the details

Provide the domain, IP address, workload, server specification or calculator inputs requested by the tool.

02

Run the check

HostGraber validates the input and processes the request using the appropriate DNS, network, SSL or calculation logic.

03

Act on the result

Review the output, copy it when needed, compare related checks and use the linked HostGraber resources for the next step.

COMMON QUESTIONS

DMARC Checker FAQ

Clear answers for common dmarc checker questions.

Should I start with p=reject?+

Usually start with p=none, review legitimate senders, then increase enforcement gradually.

Does DMARC require both SPF and DKIM to pass?+

No. DMARC passes when either SPF or DKIM both passes and aligns with the visible From domain.

What does pct mean in DMARC?+

The pct tag controls the percentage of failing messages to which the enforcement policy is applied.

KEEP INVESTIGATING

Related HostGraber tools

View all tools →

SPF Checker

Validate the SPF policy that authorizes mail servers to send for your domain.

Open tool →

DKIM Checker

Find and validate a DKIM public key using your domain and selector.

Open tool →

MX Lookup

Find the mail servers responsible for receiving email for a domain.

Open tool →
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