DNSTools
Email Headers
Analyze delivery path and authentication
Email Header Analysis
Paste raw email headers to analyze delivery path, authentication results, and security indicators.
Paste the full email headers including Received, Authentication-Results, and other header fields. Press Ctrl + Enter to run.
Quick tests:
Header Analysis Guide
- Received: Shows the path the email took.
- SPF: Validates the sending IP address.
- DKIM: Validates the digital signature.
- DMARC: Checks alignment of SPF/DKIM.
- TLS: Indicates if the email was encrypted.