Email Header Analyzer
Debug delivery issues & verify authentication
Paste email headers to analyze message routing, check authentication (SPF, DKIM, DMARC), and identify delivery delays.
How to Get Email Headers
Gmail
- Open the email
- Click More (⋮) in the top right
- Select "Show original"
- Copy the headers section
Outlook
- Open the email
- Click File → Properties
- Find "Internet headers"
- Copy the entire text
Apple Mail
- Open the email
- View → Message → All Headers
- Or use View → Message → Raw Source
- Copy the headers
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