Free Email Header Analyzer

Analyze email headers to trace the complete delivery path, verify SPF, DKIM, and DMARC authentication results, and diagnose delivery issues. Paste your email headers below for instant analysis.

What Email Headers Reveal

Email headers contain the complete routing history of a message. Our analyzer extracts and visualizes each hop, showing server names, timestamps, delays, SPF/DKIM/DMARC authentication results, and any modifications made during transit. Essential for diagnosing delivery problems and verifying email authenticity.