Email Header Analyzer Tool
Email headers contain vital information about the journey your email takes from sender to recipient. Our professional-grade analyzer helps security professionals, IT administrators, and email users understand message routing, verify authentication protocols, and identify potential security concerns. This tool parses complex header data to reveal sender IP addresses, relay servers, authentication results (SPF, DKIM, DMARC), and delivery timestamps in an easy-to-understand format.
Security Analysis
Identify authentication results, trace suspicious routing, and verify sender legitimacy through comprehensive header analysis.
Message Tracing
Track the complete path your email traveled, including all relay servers and delivery timestamps for troubleshooting.
IT Troubleshooting
Diagnose delivery issues, identify delays, and analyze authentication failures for email system maintenance.
Analyze Your Email Headers
Headers contain technical routing information and do not include personal email content. This analysis happens entirely in your browser.
Analysis Results
How to Extract Email Headers
Gmail
- Open the email in Gmail
- Click the three dots menu (⋮) next to Reply
- Select "Show original"
- Copy the entire content that appears
- Paste it into the analyzer above
Outlook
- Open the email in Outlook
- Click File → Properties
- Or right-click email → View Source
- Copy the headers from the Internet Headers box
- Paste them into the analyzer tool
Frequently Asked Questions
Email headers reveal the technical journey of your message, including sender IP addresses, mail server routes, authentication results (SPF, DKIM, DMARC), delivery timestamps, and potential security indicators. This information helps verify sender legitimacy and diagnose delivery issues.
Yes, our tool processes headers entirely in your browser without sending data to external servers. Email headers contain technical routing information, not personal message content. However, headers may include IP addresses and server names from your organization.
These are email authentication protocols: SPF (Sender Policy Framework) verifies sending server authorization, DKIM (DomainKeys Identified Mail) provides cryptographic message signing, and DMARC (Domain-based Message Authentication) defines policies for handling authentication failures. These help prevent email spoofing and phishing.