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Free Email Header Analyzer

Analyze email headers to trace email delivery path, check authentication, and troubleshoot delivery issues.

Paste Email Headers for Analysis

Copy and paste the full email headers to analyze delivery path and authentication

Paste the complete email headers including Received, Authentication-Results, and other header fields

What are Email Headers?

Email headers contain metadata about an email's journey from sender to recipient. They include information about servers that handled the email, authentication results, spam filtering decisions, and much more. Analyzing headers helps troubleshoot delivery issues and verify email authenticity.

How to Find Email Headers

Gmail

  1. Open the email
  2. Click the three dots (â‹®) menu
  3. Select "Show original"
  4. Copy the headers from the popup

Outlook

  1. Open the email
  2. Click File → Properties
  3. Copy text from "Internet headers" box
  4. Or use "View Source" option

What Our Analyzer Checks

Authentication Results

SPF, DKIM, and DMARC authentication status and alignment results.

Delivery Path

Complete routing path showing all servers that handled the email.

Security Analysis

Spam filtering results, security warnings, and potential threats.

Email Metadata

Sender information, timestamps, message IDs, and routing delays.

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