What is Email Header Analyzer?
The Email Header Analyzer parses the hidden metadata headers of an email to trace its delivery path and evaluate its security status. It extracts hop-by-hop relay servers, transit times, and verifies authentication checks including SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC. This is essential for diagnosing delivery lag and identifying phishing attempts.
How to Use Email Header Analyzer
- Open the email in your client, view its raw source, and copy the entire headers section.
- Paste the copied headers into the input area of this tool.
- Click 'Analyze Header' to parse the metadata blocks.
- Inspect the generated hop routing table, total transit delay, and email authentication status verdicts.
Common Use Cases
- Security analysts investigating suspicious emails to find the true sender IP and phishing origin.
- IT support staff troubleshooting email delivery delays between company servers and client mailboxes.
- Systems administrators verifying that outgoing SPF and DKIM signatures are correctly configured.
Pro Tips & Best Practices
- The 'From' field in an email client can easily be spoofed by hackers. The only way to verify the true sender is to inspect the `Received` headers and SPF/DKIM validation logs in the email header.
- If SPF or DKIM fail, recipient mail servers (like Gmail or Outlook) are highly likely to mark your emails as spam or block them completely.