Free Tools Documentation

Guides for all free email security tools available on DMARC Examiner. No account required to use any tool.

Checkers

Analyze your current email authentication configuration.

DMARC Checker

Validate a published DMARC record and check Gmail and Yahoo compliance.

Open tool →

SPF Checker

Analyze an SPF record, count DNS lookups, and identify issues.

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DKIM Checker

Verify a DKIM record by domain and selector.

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Domain Security Score

Get an overall security score for your domain with prioritized recommendations.

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The checker tools are straightforward: enter your domain and click the check button. Results include the raw record, a breakdown of each setting, and recommendations.

Generators and guides

Create and configure email authentication records.

DMARC Generator

Build a valid DMARC TXT record with policy, reporting, and alignment options.

Read guide → Open tool

SPF Generator

Build an SPF record with service presets and DNS lookup validation.

Read guide → Open tool

DKIM Setup Guide

Step-by-step DKIM configuration for Google Workspace, Microsoft 365, and more.

Read guide → Open tool

Advanced tools

Comprehensive email security analysis and reference.

Email Compliance Checker

Full authentication audit: DMARC, SPF, DKIM, MX, BIMI, MTA-STS, TLS-RPT, and blacklists.

Read guide → Open tool

Sending Services Directory

SPF includes and DKIM selectors for 15+ email sending services.

Read guide → Open tool