Email Header Analyzer

Paste raw email headers to see the complete authentication chain — SPF, DKIM, and DMARC results at each hop. Diagnose why emails are going to spam.

What This Tool Shows

• Authentication Results — SPF pass/fail, DKIM pass/fail, DMARC pass/fail
• Delivery Hops — Every server the email passed through, with timestamps
• TLS Encryption — Whether each hop used encrypted connections
• DKIM Signatures — Which domains signed the email and with which selectors
• Email Metadata — From, To, Subject, Return-Path, Message-ID

How to Find Email Headers

Gmail

Open the email → Click the three dots (⋮) → "Show original" → Copy all headers

Outlook

Open the email → Click "..." → "View message source" or "View message details" → Copy headers

Apple Mail

Open the email → View menu → Message → All Headers → Copy

Scan your domain to check overall email authentication health.