📧 Email Security Tools

Thirteen email authentication and security tools — checkers, record builders and analyzers for SPF, DKIM, DMARC, BIMI and more.

📧 SPF Checker

Verify SPF records and email authentication.

Open Tool →

🔐 DKIM Checker

Validate DKIM signatures and records.

Open Tool →

📋 DMARC Checker

Check DMARC policy configuration.

Open Tool →

🔍 Email Security Analyzer

Comprehensive email security analysis.

Open Tool →

💬 SMTP Connectivity Test

Test SMTP server connectivity.

Open Tool →

📧 SPF Record Builder

Build a valid SPF TXT record from includes and IPs.

Open Tool →

🛡️ DMARC Record Builder

Build a DMARC TXT record with policy and reporting.

Open Tool →

🔑 DKIM Record Builder

Build a DKIM TXT record from a selector and key.

Open Tool →

🎨 BIMI Record Builder

Build a BIMI TXT record for brand logo display.

Open Tool →

🔍 Email Header Analyzer

Parse raw email headers and Received hops.

Open Tool →

✉️ Email Address Validator (RFC 5322)

Check email syntax with a detailed breakdown.

Open Tool →

🗑️ Disposable Email Domain Checker

Check a domain against a disposable email list.

Open Tool →

🔗 Mailto Link Generator

Build a mailto: link with subject, body, cc and bcc.

Open Tool →