Hi,

Here's an improved version.  I noticed that I should use
`message-exit-actions' rather than `message-send-actions'
for deleting a message frame.

>>>>> In <yotlznw5h8hy.fsf@jpl.org>
>>>>>	Katsumi Yamaoka <yamaoka@jpl.org> wrote:

> This is my gnus-buffer-configuration.  It makes it possible to
> open multiple message frames and delete each frame automatically
> after sending it.