Recommended workflow
- Copy the full raw email header from your mail client or admin console.
- Paste it into the tool to split Received, Authentication-Results, and related IPs.
- Use the result to trace where delivery or authentication failed.
Email Security
Email Header Analyzer
Paste raw email headers to inspect SPF/DKIM/DMARC, relay path, sending IPs, and important fields.
Privacy note
Sensitive input is processed only for the current request and is not stored by this tool.
What is Email Header Analyzer for?
Email Header Analyzer reads real message headers to show relay paths, SPF/DKIM/DMARC authentication results, and sending IPs seen during delivery.
How this tool works
Email security tools combine DNS records, authentication headers, and transport-related signals to explain delivery behavior. They are designed to support SPF, DKIM, DMARC, TLS, blacklist, and header troubleshooting without hiding the technical values.
Part of this tool group
Open nearby tools in the same group to cross-check, inspect deeper, or complete a small workflow.
Open Email Security hubFrequently asked questions
Should I paste the email body into this tool?
No. The tool only needs headers; remove the email body if it contains sensitive data.
