Features
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Dashboard

Preflight Dashboard

Deep Scan runs 10 checks — authentication, domain reputation and modern email standards — live from your browser over encrypted DNS. Nothing you enter here leaves your machine.

Sending domain

DKIM selector (optional — common selectors are tried automatically)

Checks SPF, DMARC, MX and DKIM using DNS-over-HTTPS (Cloudflare 1.1.1.1). No data is stored.

Raw email headers

Parsing happens entirely in your browser — headers are never uploaded anywhere.

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