The Most Comprehensive Email Security Toolbox

Free tools to diagnose, generate, and manage your email authentication records. Everything you need to secure your brand and reach inbox zero.

DMARC

DMARC Record Checker
Verify your DMARC configuration and enforcement level.
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DMARC Record Generator
Create a valid DMARC record to protect your domain.
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Managed DMARC
Automate DMARC management and reach enforcement.
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SPF

SPF Record Check and Lookup
Perform a detailed lookup and validation of SPF records.
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SPF Record Generator
Generate a valid SPF record for your authorized senders.
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SPF Record Raw Checker
Directly validate the syntax of your raw SPF strings.
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SimpleSPF
Hosted SPF flattening to fix 'too many lookups' errors.
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DKIM

DKIM Record Checker
Verify your DKIM public keys and selector configuration.
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DKIM Record Generator
Generate public and private DKIM key pairs.
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BIMI

BIMI Record Checker
Validate your BIMI readiness and records.
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BIMI Record Generator
Create your BIMI SVG and DNS record configuration.
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BIMI Logo Converter
Convert your logo to a BIMI-compliant SVG Tiny P/S.
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Managed BIMI
Automate BIMI management and VMC implementation.
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MTA-STS & TLS-RPT

MTA-STS Record Checker
Test your MTA-STS policy for secure transport.
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MTA-STS Record Generator
Generate MTA-STS policy files and DNS records.
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MTA-STS and TLS Reporting
Combined MTA-STS and TLS reporting insights.
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TLS-RPT Record Checker
Check your TLS reporting configuration syntax.
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TLS-RPT Record Generator
Create TLS reporting (TLS-RPT) DNS records.
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Reporting

DMARC Failure Reports
Analyze forensic (RUF) reports to identify threats.
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DMARC XML Report Analyzer HOT
Convert complex XML reports into readable analytics.
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DMARC XML Report GeoMaps
Visualize your global email sending sources on a map.
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Other Tools

Domain Scanner
A comprehensive security audit for your entire domain.
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Phishing Link Checker
Scan URLs for phishing and malicious intent.
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Reputation Monitoring
Track your domain and IP reputation in real-time.
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Alert Manager
Set up notifications for security events and failures.
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Email Analyzer
Analyze email headers and delivery scores.
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Blacklist Checker
Check if your IP or domain is listed on DNSBLs and spam databases.
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SMTP Test
Test your mail server reachability, latency, and STARTTLS support.
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WHOIS Lookup
Query domain registration data and expiration dates.
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Advanced DNS Lookup
Query A, AAAA, MX, TXT, CNAME, NS, SOA, and more DNS records.
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Free Email Security Tools — DMARC, SPF, DKIM, BIMI | SimpleDMARC