Nyttio

Email header analysis

Analyze delivery path, metadata, and reported authentication results locally.

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2. Summary

Results appear after analysis.

3. Key information

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4. Authentication results

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6. Details by check

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7. Indicators & warnings

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8. Raw email header

FROM: Sender <sender@example.com>
TO: info@example.net
SUBJECT: Testmeddelande
DATE: Tue, 14 May 2024 12:32:18 +0200
MESSAGE-ID: <20240514103218.12345@example.com>
RETURN-PATH: <bounce@example.com>
MIME-VERSION: 1.0
CONTENT-TYPE: text/plain; charset=UTF-8
AUTHENTICATION-RESULTS: mx.example.net; spf=pass smtp.mailfrom=example.com; dkim=pass header.d=example.com; dmarc=pass header.from=example.com
RECEIVED: from mail.example.com (mail.example.com [203.0.113.45]) by mx.example.net with ESMTPS TLSv1.3; Tue, 14 May 2024 12:32:18 +0200
RECEIVED: from app.example.com (app.example.com [198.51.100.23]) by mail.example.com with ESMTPS TLSv1.2; Tue, 14 May 2024 12:32:17 +0200

About email headers

Headers contain delivery and authentication metadata. Received lines are normally added by servers along the path.

Better security tips

Use SPF, DKIM, and DMARC together and review authentication anomalies.

Common abbreviations

SPF · Sender Policy Framework\nDKIM · DomainKeys Identified Mail\nDMARC · Domain-based Message Authentication

Export results

Save or copy the analysis locally.

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