I have an emailed receipt of a bill payment that was never received by my Zoho email account.  I ended up forwarding the message that now contains "Fwd:" prefixed to the existing subject with forwarded text in the body.  I wish to edit the existing mail on the server to remove both of these such that the email appears as the original un-forwarded version.  I am not finding a way of editing existing email messages.  Can this be done?