Step 1: Create a New Email
Click on new to create a blank email
Step 2: Drag & Drop the Email into your New Email
In the new email, insert email@example.com as the recipient, Phishing Email as the Subject, and then drag and drop the email in question into your new email to attach it.
You should now see the email in question attached, below the subject, to the new email. Now just send the email to the IT Help Desk.