Cc: ding

>>>>> Ronan Keryell wrote:
> Gnus v5.11
> GNU Emacs 22.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.14.7)
>  of 2009-04-01 on nautilus, modified by Debian
> 200 news.gmane.org InterNetNews NNRP server INN 2.4.1 ready (posting ok).

> I have some trouble for years (yes! :-( ) with some mails disappearing
> with Gnus. Now I've found a simple running example. It seems to be
> related to multipart MIME decoding that range multiple mails. :-(

> The Unix mail file is 353-line long:
> wc /tmp/oo
>   353  1558 15280 /tmp/oo

> and is decoded weirdly:
>  . [ 328: Gayle Kent             ] <* mixed> from: Gayle Kent
>  .     [  42: Gayle Kent             ] <1 text>
>  .     [  35: Gayle Kent             ] <2 rfc822>
>  .         [  15: Gayle Kent             ] <2 html> from: Gayle Kent

> and other mails are included in this mail.  So since this is marked as
> SPAM, my Gnus configuration sends all the mail to the SPAM box, to be
> deleted... :-(

> So I'm a bit scarried because it seems easy to forge DoS MIME mails that
> kill Gnus mailbox :-( Does this method could targeting other MUA?...

You're talking about the nndoc group (i.e., the one made by
the `G f' command in the group buffer), aren't you?

Cf. (info "(gnus) Document Groups")

I don't see how it happens by ways other than `G f'.  Gnus splits
it correctly if at least the contents of that file are in the `file'

mail source.  (GnuBiff reports there are two messages, though.)