Email Header Analyzer
Parse and analyze email headers to trace routes and check authentication
Headers are analyzed locally in your browser. No data is sent to any server.
Basic Information
Authentication Results
Email Route
Spam Indicators
X-Headers
Frequently Asked Questions
What are email headers?
Metadata added by mail servers showing sender, recipient, routing, authentication, and timestamps.
How to find email headers?
Gmail: Open message > Three dots > Show original. Outlook: File > Properties.
What is SPF and DKIM?
SPF verifies sender IP authorization. DKIM adds digital signatures. Both prevent spoofing.
How can I trace the sender of a suspicious email?
View the full email headers and look for the originating IP in the earliest 'Received' header. Use an IP lookup tool to identify the sender's approximate location and ISP.
What does the Received header in an email tell me?
Each 'Received' header shows one server hop the email passed through, including timestamps, server names, and IP addresses. Reading from bottom to top reveals the email's complete delivery path.
What are Email Headers?
Email headers contain metadata about an email message, including routing information, authentication results, and various technical details added by mail servers along the delivery path.
Analyzing headers can help you:
- Trace the path an email took from sender to recipient
- Verify email authentication (SPF, DKIM, DMARC)
- Identify potential phishing or spam emails
- Troubleshoot email delivery issues
How to Get Email Headers
Gmail: Open email > Click three dots > Show original
Outlook: Open email > File > Properties > Internet headers
Yahoo: Open email > More > View raw message
Apple Mail: Open email > View > Message > Raw Source