Email Header Analyzer

1. Open the email message (double-click to open it in its own window).
2. Click File in the top menu.
3. Click Properties.
4. In the dialog box, find the Internet headers text box at the bottom.
5. Click inside the box, press Ctrl+A to select all, then Ctrl+C to copy.
6. Paste the headers into the text area above.

1. Open the email message.
2. Click the ⋯ (More actions) button in the top right of the message.
3. Select View message details (or View message source).
4. A pop-up window will show the full headers.
5. Press Ctrl+A to select all, then Ctrl+C to copy.
6. Paste the headers into the text area above.

1. Open the email message.
2. Click the ⋮ (three vertical dots / More) button next to the Reply button.
3. Select Show original.
4. A new tab will open showing the original message.
5. You can click Copy to clipboard at the top, or manually select and copy the headers section (everything before the first blank line).
6. Paste the headers into the text area above.

1. Open the email message in Apple Mail.
2. In the menu bar, click View → Message → All Headers.
3. The full headers will appear at the top of the message.
4. Select all the header text (from the first line to the blank line before the body), then press ⌘+C to copy.
5. Paste the headers into the text area above.

1. Open the email message.
2. In the menu bar, click View → Message Source (or press Ctrl+U).
3. A new window will open showing the full source.
4. The headers are everything from the top up to the first blank line.
5. Select the header portion, then press Ctrl+C to copy.
6. Paste the headers into the text area above.

Email headers are the metadata block at the very beginning of an email message. They end at the first blank line — everything before that blank line is the header block, and everything after it is the message body.

Most email clients have a "View source", "Show original", or "Message properties" option. Look in the View menu, or in the message’s context menu (⋯ or ⋮).

Once you see the raw source, copy everything from the top down to the first blank line and paste it here.