Free Tool

Email Header Analyzer

Paste raw email headers below to visualize the delivery path, check authentication results, and identify routing delays.

How to find email headers

Gmail

Open the email → click the three dots (⋮) → "Show original" → copy the headers.

Outlook

Open the email → click ⋯ → "View message source" or "View message details".

Apple Mail

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

Yahoo Mail

Open the email → click ⋯ → "View raw message".

    Email Header Analyzer — Free Tool | Stekpad