Email Header Analyzer
Paste email headers to trace routing, check SPF/DKIM/DMARC, and view all fields.
Email Header Analyzer Features
Understand your email delivery path and authentication status.
Visualizes each server hop the email passed through from sender to recipient.
Extracts and displays authentication results with clear pass or fail status.
Shows all header fields in a clean table for easy inspection.
About This Tool
Every email carries a set of headers, hidden metadata recording the servers it passed through, the sender and recipient details, and authentication results. This tool parses those raw headers into a readable trail, since the raw block is a dense stack of Received lines and technical fields most clients never show.
Reading the headers is how you trace a message's real path, spot where a delay happened, and check whether it passed SPF, DKIM, and DMARC, the three checks that verify a sender is who they claim to be. That makes header analysis a core step in investigating suspected spoofing or phishing, where the visible From line can be forged but the authentication results cannot.
How to Use It
- Copy the full raw headers from your email client (often View Source or Show Original).
- Paste them into the tool.
- Read the delivery path, timestamps, and SPF, DKIM, and DMARC results.