About Email Header Analyzer & MTA Relay Trace Forensics
Forensic email header analysis utility. Deconstructs raw MIME headers from Gmail, Outlook, or Apple Mail to reveal sending IPs, Mail Transfer Agent (MTA) hops, relay latency, and SPF, DKIM, and DMARC security authentication results.
Key Capabilities & Features
- Extracts core RFC 5322 fields: From, To, Subject, Date, Message-ID, and Reply-To
- Instant authentication status badges for SPF, DKIM, and DMARC verification
- Chronological MTA relay hop tracer showing transit server path and protocols
- Detects spoofing risks and relay delivery bottlenecks
- Works seamlessly with headers from Gmail ("Show Original"), Outlook, and Apple Mail
How to Use Email Header Analyzer & MTA Relay Trace Forensics
Obtain Email Header
In your mail client, select "Show Original" or "View Message Details" and copy all headers.
Paste Headers
Paste the raw header block into the analysis console.
Review Forensics
Inspect SPF/DKIM/DMARC badges, message origin, and step-by-step MTA delivery hops.
Privacy & In-Browser Execution Guarantee
Completely private. Confidential email headers are parsed locally in browser memory with zero external telemetry.
Frequently Asked Questions
How do I find raw email headers in Gmail?
Open the email, click the three vertical dots (More options) next to the Reply button, and click "Show original". Copy the entire text box.
What do SPF, DKIM, and DMARC mean?
SPF verifies that the sending IP is authorized by the domain owner. DKIM ensures the message was cryptographically signed and not altered in transit. DMARC instructs receiving servers what to do if SPF or DKIM fails.