Outlook header analyzer

Analyses Outlook header data to diagnose deliverability, spoofing, and routing issues for marketers, IT admins, and security teams.

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Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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Sobre esta herramienta

The Outlook header analyzer accepts a raw email header, parses the sequence of Received fields, and extracts core signals such as From domain, Return-Path, and the message-id. It surfaces DKIM, SPF, and DMARC results alongside the header path to help triage issues.
Conceptually it relies on RFC 5322 for header structure and RFC 7208 for SPF, RFC 6376 for DKIM, and RFC 7489 for DMARC. It fetches DKIM public keys and DMARC policies via DNS lookups, evaluates alignment with the From domain, and computes a diagnostic score that highlights primary risk areas.
Benefits include faster diagnosis for deliverability teams, improved security visibility for IT and security teams, and scalable reporting for compliance. Unique value comes from integrated DNS lookups, multi-hop analysis, and a clear, exportable diagnostic result that supports triage and remediation.

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Cómo usar

Provide inputs: paste the raw email header into header_text.
Configure options: adjust dns_timeout_seconds and analyze_forwarded_headers if needed.
Run analysis: trigger the analysis to parse and evaluate the header data.
Review outputs: inspect overall_score, dkim_status, spf_status, dmarc_status, alignment_status and hops.
Take action: use results to adjust sender configurations, address spoofing, and improve deliverability.

Frequently Asked Questions

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What does the tool analyze?

It parses the header chain, extracts From/Return-Path, and evaluates SPF, DKIM, and DMARC status, as well as the hop sequence and DNS results. The output highlights alignment and potential spoofing signals to guide remediation.

Can it handle forwarded headers or multiple hops?

Yes. The tool analyzes the Received chain across multiple relays and flags ambiguities from forwards or forwarding services. It notes when headers have been altered and when results may be inconclusive due to forwarding.

Can results be exported or integrated?

Results are presented as structured fields including a numeric score and status strings. Export options include JSON or CSV formats for integration with SIEMs, ticketing, or reporting pipelines.

Which standards guide the analysis?

The analysis follows RFC 5322 for header structure, RFC 7208 for SPF, RFC 6376 for DKIM, and RFC 7489 for DMARC, ensuring industry-standard interpretation and interoperability.

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