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Answer

Message headers can help DoIT staff investigate:

  • unwanted or dubious messages
  • duplicate messages
  • delayed message delivery
  • other unusual email behavior

Follow the instructions below to learn how to view and forward full mail headers with your mail client. If you are using a mail client not listed here, please contact the Help Desk.

When you send the headers, be sure to include a description of the problem or behavior you're seeing, and any background information that you think may be relevant.
Instructions

MS Outlook

  1. Double-click an email message to open it outside of the Reading Pane.

  2. Click File > Properties.

  3. Header information appears in the Internet headers box.

  4. Highlight the information in that box, and press Ctrl+C to copy, and paste the copied text into an email.

Apple Mail

  1. Start Apple Mail.
  2. Go to the View menu and select Message and then Long Headers.
  3. Go to the Edit menu and choose Select All.
  4. Go to the Edit menu again and choose Copy.
  5. You can now paste the copied text into an email.

Mozilla Thunderbird

  1. Start Mozilla Thunderbird.
  2. Go to the View menu and select Headers and then All.
  3. Go to the Edit menu and choose Select All.
  4. Go to the Edit menu again and choose Copy.
  5. You can now paste the copied text into an email.

Google Mail (Gmail)

  1. Open the individual message.
  2. At the top-right corner of the message window, click the three dots next to Reply.
  3. Click Show original

  4. A new browser window will open showing full header information.
  5. Click the blue Copy to clipboard button.
  6. You can now paste the copied text into an email.

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