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Email Diagnostic Suite

Email Header Analyzer

Paste raw headers or drop an .eml — get authentication, routing and Softaken-ready diagnostics locally.

Privacy-first — email content is parsed in your browser. DNS lookups (if used) go to Cloudflare DoH for domain records only — never your message body.

Tip: drag & drop a .eml or .txt file. MSG binary is not supported — paste extracted headers or use EML.

Tool Options

Parses Authentication-Results, Received chain, X-MS-* (Outlook) and X-Google-* / ARC (Gmail) headers. No MSG binary — use EML or pasted headers.

Results

Results will appear here…
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How It Works

Email diagnostics for admins, security teams and Softaken users.

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Paste or upload

Drop .eml/.txt or paste headers from Outlook, Gmail or any client.

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Read the report

Check Auth-Results, hops, spam signals and Outlook/Gmail insight panels.

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Export

Copy or download TXT/CSV/JSON — or Print to PDF in your browser.

Email content stays in the browser. DNS tools only query public records via DoH.

About Email Header Analyzer

Analyze email headers in your browser: From/To, Auth-Results (SPF/DKIM/DMARC/ARC), Received hop timeline, spam indicators, Outlook & Gmail insights, and an Email Health Score. Export TXT, CSV, JSON or print. Part of FreeConverter’s Email Diagnostic Suite for Outlook, Exchange, Gmail and IMAP troubleshooting.

FAQs

No. Header and MIME analysis run entirely in your browser. FreeConverter servers never receive your email content.

Those tools query Cloudflare DNS-over-HTTPS from your browser. Only the domain (and DKIM selector) are sent to Cloudflare — not the email body.

Yes. FreeConverter.app browser email diagnostic tools are free to use.