Instantly diagnose email delivery issues, detect spoofing attempts, and verify SPF, DKIM, and DMARC authentication.
Upload an email header or send an email to analyze authentication results, routing paths, delays, and security risks in seconds.
1. Upload raw header or send an email
Paste raw email headers or send the email to the auto-generated analyzer address.
2. Click “Analyze”
Our tool parses authentication, routing, and security signals instantly.
3. Review clear results
See pass, fail, and risk insights with easy-to-understand explanations.
An email header is a hidden metadata layer that contains everything about how an email was sent, authenticated, and delivered. It reveals:
Sender and receiver details
Server hops and routing paths
Authentication results (SPF, DKIM, DMARC, BIMI, MTA-STS, TLS-RPT)
Detailed error highlights
A powerful email header analyzer helps you quickly diagnose delivery failures, spot spoofing, trace suspicious activity, and understand why an email was flagged as spam.
Check SPF, DKIM, and DMARC authentication with clear explanations and instantly spot weak or missing email security controls.
Visualize every server hop in a clear timeline to identify routing issues, delays, or misconfigured mail servers.
Highlight high-risk elements such as suspicious IP addresses, compromised hosts, missing records, and spoofing indicators.
Verify ARC-Seal and ARC-Authentication-Results to detect broken forwarding chains, essential for mailing lists and relays.
Transform raw, unstructured email headers into a clean, structured, human-readable format.
Analyze the implementation of advanced protocols beyond basic DMARC to ensure your domain is configured for modern TLS encryption (MTA-STS) and visual brand identification (BIMI) in the inbox.
Tip: You only need the header. The email body is not required.
It parses and analyzes email header data to determine authentication results, routing paths, delivery delays, and potential security risks.
Headers often reveal authentication failures, risky sending IPs, or spam-triggering signals used by mailbox providers.
The tool uses industry-standard authentication checks to provide highly reliable and actionable insights.
Yes. Authentication failures, domain mismatches, and suspicious sending infrastructure are strong spoofing indicators.
Yes. PowerDMARC’s Email Header Analyzer is completely free and requires no login.
No. Header data is not stored or shared.
Strengthen your domain security with our free lookup tools:
Email headers show the symptoms.
DMARC monitoring fixes the cause.
Protect your domain with real-time DMARC monitoring, advanced analytics, and fully managed email authentication.
