emacs + mutt > better quoting of emails while replying

[thomas]

Hello,
I've just installed mutt with emacs as the editor. If I do a reply, I
get the following lines and the cursor is on the second line (the one
with Hello) :
--------------------
On Sun, Jan 01, 2006 at 05:24:26AM -0800, foo wrote:
> Hello!
>   Blablablablabla
>   Bye
--------------------

I would like emacs to add to blank lines on the top and set the cursor
on the first line, that is :
--------------------
[cursor is here]

On Sun, Jan 01, 2006 at 05:24:26AM -0800, foo wrote:
> Hello!
>   Blablablablabla
>   Bye
--------------------

How can I do that? So far, my ~/.emacs contains the following lines:

(setq auto-mode-alist (append (list (cons "^\/tmp\/mutt" 'mail-mode))
  auto-mode-alist))
(add-hook 'mail-mode-hook 'my-mail-mode-hook)
(defun my-mail-mode-hook ()
  (turn-on-font-lock)
  (auto-fill-mode)
  (mail-text)

Thanks for your answer and happy new year!
++

Thomas