To attach an existing email as an attachment in a new email you will need to follow the steps below:
1.Open a new email and enter the email address.

2. You will want this to be a pop up so that you can now go to your inbox and drag the spam email into the body of the new email.

3. Once you drag and drop it into the body of the new email, you should see it appear as an attachment.

You have now attached an existing email to a new email and it is ready to be sent.