Free Email Security Tools

Check, generate, and validate your email authentication records. All tools are free to use with no registration required.

Check Your Domain

Domain Health

Comprehensive domain security checks

Domain Health Check

Complete domain security analysis. Check DMARC, SPF, DKIM, MTA-STS, BIMI, and blacklist status in one scan.

Blacklist Checker

Check your domain and IP addresses across major blacklist providers. Identify listings that affect deliverability.

Email Provider Analysis

Identify all email services and providers used by your domain. Discover unauthorized senders.

DMARC Tools

Create and validate DMARC records

DMARC Record Lookup

Check and validate your existing DMARC configuration. Get detailed analysis and recommendations.

DMARC Record Generator

Create a properly formatted DMARC record in seconds. Configure policy, reporting, and alignment settings.

DMARC Report Analyzer

Upload and analyze DMARC XML reports. Visualize authentication results and identify issues.

SPF Tools

Sender Policy Framework configuration

SPF Record Lookup

Validate your SPF record and check for common issues. Analyze DNS lookups and mechanisms.

SPF Record Generator

Build a valid SPF record with our interactive generator. Add mechanisms and modifiers easily.

SPF Flattening Tool

Flatten your SPF record to reduce DNS lookups. Stay under the 10 lookup limit automatically.

DKIM Tools

DomainKeys Identified Mail setup

DKIM Record Lookup

Check and validate your DKIM public key record. Verify selector configuration and key strength.

DKIM Record Generator

Generate DKIM key pairs and DNS records. Choose key size and configure signing parameters.

BIMI Tools

Brand Indicators for Message Identification

BIMI Record Lookup

Check your BIMI record and logo configuration. Verify VMC certificate if present.

BIMI Record Generator

Create a BIMI record for your domain. Configure logo URL and optional VMC certificate.

BIMI Logo Validator

Validate your SVG logo for BIMI compliance. Check dimensions, format, and requirements.

BIMI Logo Converter

Convert your SVG logo to BIMI-compatible format. Optimize for email client display.

MTA-STS Tools

Mail Transfer Agent Strict Transport Security

MTA-STS Checker

Validate your MTA-STS policy and DNS record. Check for proper TLS enforcement configuration.

MTA-STS Generator

Generate MTA-STS policy and DNS record. Configure mode, max age, and MX servers.

TLS-RPT Tools

TLS Reporting configuration

TLS-RPT Checker

Validate your TLS-RPT record configuration. Ensure proper reporting setup.

TLS-RPT Generator

Create a TLS-RPT record for your domain. Configure reporting email addresses.

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