Mail Header Analyzer by

JPKCom Developer Tools
Code & Text Tools
Beautify Cheat Sheets Coder Compiler Convertor PRO CSV Editor JSON Editor Lorem Ipsum Markdown Editor Regex Debugger Source Viewer WP Code Generator WYSIWYG Editor
Design & Graphics
Colors Fonts Geopattern Graphic Editor Placeholder Service Trianglify UI
Security & Utilities
Cryptor (AES-256) DNS, SSL, Redirect & URL Cron Job Helper Docker/Podman Composer IP Tools Generator Hash Generator Mail Header Analyzer Info Tools QR Code Time Converter UUID Generator
About
JPKCom Developer Tools

Free online tools for web developers and designers.

31 Tools available.

Paste raw email headers below and click Analyze to parse and visualize the delivery path, authentication results, and all header fields.

Raw Email Headers

How to get email headers

Gmail

  1. Open the email
  2. Click More (three dots)
  3. Select Show original
  4. Copy the headers

Outlook

  1. Open the email
  2. Click File → Properties
  3. Copy from Internet Headers

Thunderbird

  1. Open the email
  2. Press Ctrl+U
  3. Copy headers (above the blank line)

Delivery path extracted from Received headers, ordered from sender to recipient.

Email authentication results from SPF, DKIM, DMARC checks and spam analysis.