How to send or forward an email you received as an .eml attachment from Outlook webmail?

Step 1: Sign into your account via the URL http://outlook.office365.com/

Step 2: Click on New Message button and enter the recipient address in the To field.

Step 3: From the message list pane, drag the message from the left pane to the right new message pane.

Step 4: Now the email will be attached to the draft as an .eml attachment.

Step 5: Click Send.