"Forward" in the standard way

[Jordan Wilson]

I have been trying to forward HTML email (*makes the sign of the
cross*).

I want to have Gnus treat the email content "in the standard way",
i.e. have the HTML content inline (not as an attachment), and renderable
by non-Gnus email clients.

My fiddlings with `message-forward-as-mime' and
`message-forward-show-mml' has got me as far as having the
HTML message inline, but the HTML is unrendered on the other end.

Is there a simple way of doing this using Gnus?

-- 

Sent from Gnus v5.13, Emacs 25.0.92.1