Inspect email message headers
Unfold and inspect an email message header block.
Input & settings
How to use this tool
Unfold and inspect an email message header block.
Limits and behavior
Results are generated in your browser, not uploaded to CraftAI. Inputs are size-limited and validated. Unfold and inspect an email message header block. Enter your own input, adjust settings, then process. Inspect and save the generated result. Reset or cancel to clear results. Displays routing/authentication claims from supplied headers. It does not independently authenticate DKIM/SPF or trust forged headers.
Inspect technical email headers
Review the fields supplied in an email header block to understand apparent sender and routing information.
Does an email header prove who sent a message?
No. Some header values may be spoofed, and authentication results require trusted context.
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