>>>>> In <7ivej0u3tp.fsf@lanthane.pps.jussieu.fr> 
>>>>>	Juliusz Chroboczek <jch@pps.jussieu.fr> wrote:
> I recently received an unencrypted e-mail with an encrypted attachment
> with was of MIME type ``application/octet-stream'' and an extension of
> ``.pgp''.  When I tried to save the attachment to disk, EasyPG asked
> me to select a destination key and insisted that I must encrypt it.  Again.

> This was worked around by saving the attachment to a different
> filename and then renaming it from the shell, but it's still mightily
> inconvenient.

It's not so easy to be solved because mm-save-part-to-file avoids only
re-compression, and there is no option to avoid re-encryption as well.

Preliminarily, I just installed the following change to the Gnus trunk.

2007-01-22  Daiki Ueno  <ueno@unixuser.org>

	* mm-decode.el (mm-save-part-to-file): Use `mm-write-region' instead of
	`write-region' to respect `mm-inhibit-file-name-handlers'.