Sledgeheader Get Pro ($29/mo)

Secure Your Domain. Protect Your Brand.

One-click diagnostics to fix broken email records, detect unauthorized senders, and stop your emails from landing in spam.

⚡ Instant Health Audits 🔒 100% Client-Side Privacy 🚨 Rogue Sender Detection
Deliverability Tool

Domain Health & SPF Audit

Audit your domain's email setup in seconds. Automatically detect missing MX records, check SPF alignment, and catch the dangerous 10-DNS lookup limit before emails go to spam.

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Threat Detector

Email Threat & Report Analyzer

Drag & drop daily DMARC reports (.xml / .gz). Instantly identify unauthorized sending services, scammer spoofing attempts, and failing email providers in a plain-English matrix.

Analyze Email Reports →
Key Inspector

Provider Key Authenticator

Verify public DKIM keys for Google Workspace, Microsoft 365, Mailchimp, or SendGrid. Detect weak key lengths (1024-bit) and fix misconfigured DNS records.

Verify Email Keys →

Automated 24/7 Impersonation Monitoring

Tired of manually downloading XML attachments? Sledgeheader Pro automatically ingests daily email reports, monitors your sending reputation, and alerts you instantly in Slack or Email when threats appear.

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