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Validate DMARC policies and analyze email authentication alignment. Check policy configuration and get insights for improved security.
Generate DMARC policies and DNS records for email protection.
Validate SPF records and email sender authorization.
Verify DKIM signatures and public key configuration.
Complete domain authentication and deliverability analysis.
Test email content for potential spam triggers.
Calculate optimal mailbox setup for email campaigns.
DMARC (Domain-based Message Authentication, Reporting & Conformance) builds upon SPF and DKIM to provide domain owners with policy control over email authentication failures. It's essential for preventing email spoofing and improving deliverability.
1. Setup SPF and DKIM
Ensure proper SPF and DKIM authentication before implementing DMARC.
2. Start with p=none
Monitor email flows for 2-4 weeks to understand your ecosystem.
3. Analyze reports
Review aggregate reports to identify legitimate vs. fraudulent sources.
4. Enforce gradually
Move to quarantine, then reject policies using percentage controls.
None (p=none)
Monitor mode - collect data without affecting email delivery.
Quarantine (p=quarantine)
Failed emails sent to spam folder for recipient review.
Reject (p=reject)
Maximum protection - unauthorized emails are blocked completely.
A DMARC checker is a tool that looks up the DMARC DNS record for a specific domain and validates its syntax and policy configuration. It helps ensure that your email domain is protected against spoofing.
DMARC has three main policies: 'p=none' (monitoring only, no action taken), 'p=quarantine' (suspicious emails are sent to spam), and 'p=reject' (suspicious emails are blocked completely).
DMARC is crucial for email security because it allows domain owners to specify how receivers should handle emails that fail authentication (SPF/DKIM). It prevents attackers from impersonating your domain (spoofing) and improves legitimate email deliverability.
To fix this, you need to generate a DMARC record (using our DMARC Generator tool) and add it as a TXT record to your domain's DNS settings with the host name '_dmarc'.
InboxKit provides automated DMARC setup with monitoring and expert guidance
