1. Double click to open an email, then click the “File” tab.
2. Select “Properties”.
3. The header information appears in the “Internet headers” box.
4. You can copy the headers and paste them into an email message or another application.

Thanks to Microsoft and VirginiaTech for this information.

Refer to Get email headers from Ms Outlook for more details.

1. Right-click the message without opening it, then click “Message Options” from the drop-down menu.
2. The header information appears in the “Internet headers” box.
3. Highlight the contents, then right-click.
4. You can copy the headers and paste them into an email message or another application.

Thanks to VirginiaTech for this information.

1. Right-click the message without opening it, then click “Options” from the drop-down menu.
2. A box called “Message Options” pops up.
3. Near the bottom of the box you'll see a text area titled “Internet headers”.
4. Highlight the contents, then right-click.
5. You can copy the headers and paste them into an email message or another application.

Thanks to Paseur for this information.

1. Right click on the message without opening it.
2. Select Options, then Internet Headers.
3. The information can then be copied and pasted elsewhere for reporting abuse.

Thanks to Tork Buckley for this information.

1. Open Apple Mail.
2. Select/click on the specific email.
3. Go to the View menu.
4. Select Message → Raw Source. The email header will be displayed on a new window.

Refer to Get email headers from Apple Mail (Mac OS X) for more details.

1. Open up the specific email.
2. Go to File → Properties, and click on the “Detail” tab.
3. Click on the “Message Source” button.
4. Copy all of the text from the pop up dialog box.

Thanks to Stanford University for this information.

1. Open Mozilla Thunderbird.
2. Click on the particular mail.
3. Then, click on More → View Source. The full headers will be displayed in a new window.
   

Refer to Get email headers from Mozilla Thunderbird for more details.

1. Open the message and select View, then Options from the drop-down menus.
2. Near the bottom of the screen you'll see a section titled INTERNET HEADERS.
3. You can copy the headers and paste them into an email elsewhere to get them to the proper people.

Thanks to Cynthia Armistead for this information.

Microsoft Outlook 97 may require an update called the Internet Mail Enhancement Patch in order to display the email headers. After applying the patch, you should be able to view the headers by selecting the message, then going to the File menu and selecting Properties.

Thanks to the SpamCop FAQ for some of this information.

You need to be viewing the message in its own window or in a preview pane, then:

1. Right click on the message and select Properties.
2. Choose the Details tab and select the Message Source Button.
3. Select All (CTRL + A) and Copy (CTRL + C).
4. Close the Message Source window and the Properties window.
5. Select New Mail and position your cursor in the body of the email.
6. Paste (CTRL + V) the copied information.
7. Send the email to the abuse department or WHOA ISA.

Thanks to Andrew Kuebler for this.

To find the Internet headers in Microsoft Outlook Express 6:

1. Select the email and go to: “File”
2. Select: “Properties”
3. Choose the “Details” tab

Thanks to Nancy Rogers for this tip.

1. Select the email.
2. From the View menu, choose Source.
3. A new window will appear containing the email with full headers. Press command+a to select all, then command+c to copy.

Thanks to the SpamCop FAQ for this information.

1. Select the message in the Inbox.
2. Go to View: Source.
3. A new window will contain full headers and message text.
   This is the easiest way to copy and paste for reporting.
4. Alternately, go to Edit→ Preferences→ Mail and News.
5. Under the View tab, there is a checkbox for Show Internet Headers.
6. This option is a bit less useful, as it separates the headers from the body.

To read (and copy) the header using Microsoft Exchange, do the following:

1. Open the message in Exchange to view it.
2. Choose File → Properties → Internet.
3. The header will be visible and will be highlighted. Simply right click and copy it.
4. In some versions of Exchange, you'll need to go to the File Menu → Properties → Details → Message Source.

Thanks to Doug K. and the SpamCop FAQ for this information.

With the message open, click the [blah blah blah] button at the top of the message box.
The full headers display in a new window.

Thanks to Stanford University for this information.