The only email reputation engine you will ever need.
Unrivaled domain protection. Deep-inspect raw RFC 5322 headers, validate RFC 8058 One-Click unsubs, audit FCrDNS (PTR) records, enforce MTA-STS transport, and verify BIMI brand logos instantly.
Granular Raw Header & RFC 8058 Inspector
Paste full source email headers to evaluate routing paths, cryptographic DKIM signatures, DMARC alignment, and mandatory RFC 8058 One-Click Unsubscribe headers.
Review your configuration above.
DMARC & BIMI Protocol Generator
Generate airtight TXT records meeting strict enforcement standards and configure your Verified Mark Certificate (VMC) for inbox brand logos.
Configure Protocol Parameters
Generated DNS Record
Publish as a TXT record under _dmarc.sledgeheader.com.
Global Threat Intelligence Stream
Real-time edge telemetry streaming from your Cloudflare D1 database capturing spoofing attacks and vendor authentication failures.
Enterprise Infrastructure Health Scanner
Run an exhaustive audit evaluating SPF limits, Reverse DNS (PTR), MTA-STS transport security, blacklist exposure, and Google/Yahoo bulk sender compliance.