Email Header Analyzer

Paste raw email headers to visualize delivery hops, SPF/DKIM/DMARC authentication results, and detect spoofing.

Computational Status

AI Diagnostic Specialist

Automatically analyze tool output and explain results in plain English

Configure Tool Params

Raw Email Headers

Used 1,245 times todaySecure In-Browser Execution

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Educational Guide: Understanding Email Header Analyzer

Step-by-Step Operation Guide

Paste/Enter Email Details

Paste raw email headers, specify domains, or configure SPF/DKIM/DMARC attributes for Email Header Analyzer.

Analyze Deliverability

Trigger blacklist scans, query MX propagation maps, or compile configuration records.

Review Auth Results

Inspect SPF/DKIM signatures alignment, verify server status, and implement AI-suggested optimizations.

How to Interpret Diagnostic Results

Email deliverability diagnostics for Email Header Analyzer measure server reputation and configuration safety. Standard alignments confirm authentication status.

Verify SPF, DKIM, and DMARC alignment status. Ensure host domains are not blacklisted in global spam databases to preserve sender reputation.

Troubleshooting & Industry Standards

For DNS records, verify propagation times (up to 48 hours). Resolve deliverability failures by auditing domain DNS zones and registrar settings.

Reference Standards & Protocols

RFC 7208 (SPF)RFC 6376 (DKIM)RFC 7489 (DMARC)RFC 5321 (SMTP)

Frequently Asked Questions

Learn more about how this tool works and standard configurations

Email headers contain metadata about an email message, including information about the sender, recipient, route taken by the mail servers, and authentication checks like SPF, DKIM, and DMARC.

Copy the raw, full headers from your email client (e.g., "Show original" in Gmail) and paste them into the analyzer to parse the delivery hops, authentication statuses, and potential delays.

Yes, by analyzing the SPF, DKIM, and DMARC verification results in the headers, it determines if the sender's identity has been verified or if it shows signs of spoofing or phishing.