Free Email Header Analyzer
Paste raw email headers and get the story: did SPF, DKIM and DMARC pass, what path did the message take, and does anything look spoofed.
Frequently asked
How do I get an email's raw headers?
Gmail: three-dot menu → "Show original". Outlook: File → Properties → Internet headers. Apple Mail: View → Message → All Headers. Copy everything above the message body and paste it here.
What are the spoofing red flags?
Authentication-Results showing spf=fail or dmarc=fail, a From domain that differs from the Return-Path and DKIM d= domain, and Received chains that originate somewhere implausible. Any of these on a "bank" email means don't click.
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