Save email as Message File

Is it possible to add the ability to save an email as a message format that could be opened by either Outlook (for other users) or other Zoho email users? I used this functionality many times when I used Outlook to attach an email so it would retain all the original format as well as any attachments that were included in that email.

This is great when forwarding information to a customer without having to save all the attachments to your desktop and re-attaching them to a new email message; you simply attach the original email that has all the attachments and information in it.

Thanks,

Kris