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57 tools · 12 groups
Check your domain's DMARC record in seconds with our free lookup tool.
Generate DMARC records to help secure your domain with our free tool. Quickly set up DMARC policies and defend your domain against spoofing or phishing attacks.
Check your domain's MX records and mail server configuration instantly. Get mail exchange servers, priority values, IP addresses, ASN, plus A, AAAA, and CNAME records for complete email and domain infrastructure visibility.
Validate your domain's SPF record with our free SPF Checker tool.
A disposable email checker helps you detect throwaway email addresses so you can protect signups, reduce spam, and keep your user data clean.
Analyze email headers to trace origin, verify SPF/DKIM/DMARC, and detect spam or spoofing.
Enter a mail server hostname to discover every domain that receives its email through it. Search with exact matching or wildcards for security research and threat analysis.
Test SMTP connections, ports, and authentication to diagnose delivery issues.