DMARC Lookup
Our DMARC Lookup tool lets you instantly check, validate, and interpret your domain’s DMARC record to ensure strong email authentication and protection.
About DMARC Lookup
DMARC Lookup - Check and Validate Your Domain’s Email Authentication Records
Ensure your domain’s emails are trusted and secure with our free DMARC Lookup Tool. Instantly check and validate your domain’s DMARC (Domain-based Message Authentication, Reporting, and Conformance) record to prevent spoofing, phishing, and email fraud.
Our DMARC Lookup helps you analyze, interpret, and verify your DMARC DNS record configuration, ensuring your domain’s email authentication aligns with SPF and DKIM policies for maximum protection.
What Is a DMARC Record?
A DMARC record is a DNS TXT entry that tells receiving mail servers how to handle messages that fail authentication checks using SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail).
DMARC adds an important policy layer; it defines what happens if an email fails both SPF and DKIM validation, such as whether it should be quarantined or rejected.
A typical DMARC record looks like this:
v=DMARC1; p=reject; rua=mailto:dmarc-reports@domain.com
DMARC policies include:
- p=none: Monitor only (no action taken)
- p=quarantine: Flag suspicious emails as spam
- p=reject: Block unauthorized or spoofed emails
How the DMARC Lookup Tool Works
Using our DMARC Record Checker is simple and instant:
- Enter your domain name (e.g., example.com).
- The tool retrieves your DNS TXT record containing the DMARC configuration.
- We analyze each parameter (policy, alignment, reports).
- You get a detailed breakdown showing validity, alignment, and any configuration errors.
Our system checks:
- Policy enforcement (none/quarantine/reject)
- SPF and DKIM alignment (adkim, aspf tags)
- Reporting URIs (rua, ruf tags)
- Record version and syntax accuracy
- Failure options and percentage application (fo, pct tags)
DMARC Record Tags Explained
| Tag | Meaning | Description |
| v | Version | Must always be DMARC1 |
| p | Policy | Defines action: none, quarantine, or reject |
| rua | Aggregate Reports | Email address for summary reports |
| ruf | Forensic Reports | Email for detailed failure reports |
| sp | Subdomain Policy | Applies DMARC policy to subdomains |
| adkim | DKIM Alignment | r (relaxed) or s (strict) |
| aspf | SPF Alignment | r (relaxed) or s (strict) |
| fo | Failure Options | 0, 1, d, s (defines when reports are sent) |
| pct | Percentage | Defines % of emails DMARC applies to |
| ri | Report Interval | Frequency of report delivery (in seconds) |
Our DMARC validator reads and interprets these tags to ensure your record is RFC 7489 compliant.
Why Is DMARC Important?
Implementing DMARC helps your organization:
- Prevent phishing & spoofing attacks targeting your brand
- Protect your domain reputation from being misused
- Improve email deliverability for legitimate messages
- Gain visibility into who sends emails using your domain
- Comply with security frameworks like GDPR & HIPAA
Without DMARC, attackers can impersonate your email address to trick customers or employees, damaging your trust and credibility.
Common DMARC Misconfigurations
Many domains fail DMARC validation due to small configuration errors, such as:
- Missing rua or ruf tags (no reporting)
- Incorrect policy value (typos or invalid syntax)
- Misaligned SPF/DKIM records
- Missing semicolons in TXT record
- Using the wrong report email syntax
Our DMARC lookup tool highlights such issues instantly, so you can correct them and strengthen your email security.
DMARC vs SPF vs DKIM
| Protocol | Purpose | Role in Authentication |
| SPF | Identifies authorized mail servers | Checks if the sender is allowed to send from a domain |
| DKIM | Adds a digital signature to emails | Verifies message integrity |
| DMARC | Enforces policy & reporting | Decides what happens if SPF/DKIM fails |
Together, these three protocols ensure your emails are authentic, verified, and trusted.
How Often Should You Check DMARC Records?
DMARC records should be checked regularly, especially after any DNS or mail server updates. Our free DMARC checker makes it easy to verify your record anytime to ensure continuous compliance and security.
Use Our Free DMARC Lookup Tool
Run a DMARC check for your domain in seconds.
Simply enter your domain name above to:
- Validate your DMARC record instantly
- Identify configuration errors
- Ensure SPF and DKIM alignment
- Detect missing reports or policies
- Strengthen your email authentication
Protect your domain and brand reputation. Start your DMARC lookup now.
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Frequently Asked Questions About DMARC Lookup
1. What happens if there is no DMARC record for my domain?
Without a DMARC record, your domain becomes vulnerable to phishing and spoofing attacks. Email servers won’t know how to handle messages that fail authentication.
2. Can I use DMARC without DKIM?
It’s possible, but not recommended. DMARC works best when both SPF and DKIM are properly configured and aligned.
3. How often should I update my DMARC record?
Review your DMARC settings every few months or after changing mail providers or DNS records.
4. What does “p=reject” mean in DMARC?
It’s the highest enforcement level. Any email failing DMARC checks is rejected outright by the receiving mail server.
5. How do I read DMARC reports?
Aggregate reports (rua) are sent in XML format and summarize all authentication results for your domain. You can use reporting tools to visualize this data easily.