Free Email Security Tools
Professional-grade tools to analyze, generate, and improve your email authentication. No signup required.
Checkers
Analyze your current email authentication configuration.
DMARC Checker
Validate your DMARC record and check compliance with Gmail and Yahoo requirements.
SPF Checker
Analyze your SPF record, count DNS lookups, and identify potential issues.
DKIM Checker
Verify your DKIM records and test common selectors for your domain.
Domain Security Score
Get a comprehensive security score for your domain with actionable recommendations.
Generators & Guides
Create and configure email authentication records.
DMARC Generator
Generate a valid DMARC record with custom policy, reporting, and alignment options.
SPF Generator
Build your SPF record with includes, IPs, and mechanisms. Validate DNS lookups.
DKIM Setup Guide
Step-by-step DKIM setup instructions for Google Workspace, Microsoft 365, and more.
Advanced Tools
Comprehensive email security analysis.
Email Compliance Checker
Full compliance check covering DMARC, SPF, DKIM, MX, BIMI, MTA-STS, and blacklist.
Sending Services Directory
SPF and DKIM settings for popular email services like Google, Microsoft, Mailchimp.
DMARC XML to Human Readable
Convert DMARC aggregate report XML into a clear, readable format with summary statistics.
Email Header Analyzer
Trace email delivery path, check SPF/DKIM/DMARC authentication, and inspect key headers.
Want continuous monitoring?
Get real-time alerts, detailed reports, and expert recommendations with DMARC Examiner.