Analyze email headers for security and authenticity — 100% in your browser
Not sure what SPF, DKIM or
DMARC mean? The Mail Ward guide explains all three,
and the what-if runbook covers what to do when a result says
fail.
Paste raw headers or a full .eml message — or drag a
.eml/.txt file anywhere onto this page.
Paste email headers to analyze
Press Ctrl+V or click "Paste & Analyze Headers"