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Email delivery

Email header analyzer

Review email routing and SPF, DKIM, DMARC, ARC, and transport evidence without sending the message to Emberix.

Paste a message’s raw headers to see the routing path and the authentication results it carries. Analysis happens only in this browser. Emberix does not upload, store, or receive what you paste.

Paste headers, not the message. In your mail client, use its option to view the original or message source, then copy the header block at the top. The analyzer ignores anything after the first blank line.

How to read the result

  • Authentication results show what a receiving mail system recorded for SPF, DKIM, DMARC, or ARC. They are useful evidence, but only the recipient’s trusted mail system can make them authoritative.
  • Routing hops are shown oldest first. Received fields can be added or forged before a message reaches a trusted provider, so use them as clues rather than conclusive proof.
  • Transport evidence means a hop mentions TLS or an encrypted SMTP protocol. It does not prove every hop used encryption or that the message was encrypted end to end.

Privacy and handling

The analyzer is client-side JavaScript. It makes no network request and does not write your headers to browser storage. If you save or share a result, use a redacted copy and review it first, because header fields can contain email addresses, IP addresses, hostnames, message IDs, and internal routing detail.

Emberix

Emberix builds affordable SaaS tools for the small and mid-sized businesses other platforms ignore. Lens brings network management, assessment, and attack-surface visibility to MSPs and direct customers.

Built by people who've run MSPs

© 2026 Emberix. Built for MSPs, their clients, and direct customers alike.

Lens is an Emberix product. Verto, our billing and client-engagement platform for consultancies, is available separately at vertobill.com.

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