Automatically scan your domain, flatten complex SPF lookup limits, inspect email headers, parse raw RUA XML threat reports, and stage safe multi-admin DNS updates.
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What email issue are you trying to solve right now?
Parse received headers, trace mail servers, and verify SPF/DKIM/DMARC authentication results.
Adding services like Google Workspace, Salesforce, and SendGrid breaks the 10 DNS lookup limit.
Missing or misconfigured DMARC policies and DKIM keys cause major ISPs to reject outbound mail.
Run zero-install domain audits live through Cloudflare Edge Workers and Google Cloud Run.
Paste raw email headers to trace routing hops and verify SPF, DKIM, and DMARC authentication status.
Generate CNAME routing targets to delegate DMARC policy management directly to Sledgeheader.
Instantly generate selector CNAME rules for external email service providers.
Detect invalid tags, missing semicolons, deprecated PTR mechanisms, or dangerous +all rules.
Upload aggregate reports (.xml, .gz, .zip) to parse headers and stream records into BigQuery analytics.
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Instant setup. No sales calls or manual provisioning needed.