Email Header Analyzer
Unfold and decode email headers for troubleshooting delivery issues.
The Email Header Analyzer unfolds folded headers, decodes RFC 2047 encoded words, and presents the result as a readable field table. It helps when you need to inspect delivery, authentication and content headers from a raw message.
Please enter some input.
How to use
- Copy the raw header block from your email client or server log.
- Paste it into the input field.
- Review the parsed fields in the table and copy them when needed.
Frequently asked questions
Which headers can it parse?
Any standard header such as From, To, Subject, Date, MIME-Version, SPF, DKIM or DMARC, as long as each line starts with a field name.
Are encoded subjects decoded?
Yes, RFC 2047 encoded words in Base64 or Quoted-Printable form are decoded when the charset is supported.
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