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From: Simon Josefsson <jas@extundo.com>
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Subject: Re: Verifying inline gpg signatures
Date: Fri, 21 Mar 2003 20:58:23 +0100
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In-Reply-To: <m3vfyo6ul1.fsf@defun.localdomain> (Jesper Harder's message of
 "Thu, 13 Mar 2003 00:20:10 +0100")
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Jesper Harder <harder@ifa.au.dk> writes:

> Graham Murray <graham@gmurray.org.uk> writes:
>
>> Yes. Looking again at the messages which do not automatically
>> verify, they are sent from Mozilla and have Content-Type: flowed. So
>> that could be what is causing the problem.
>
> Yes, format=flowed is the problem -- I can reproduce that with f=f
> messages produced by Gnus, too.  Like this one.

The reason is that `gnus-display-mime' says

...
      (let* ((handles (or ihandles
			  (mm-dissect-buffer nil gnus-article-loose-mime)
			  (and gnus-article-emulate-mime
			       (mm-uu-dissect))))
...

which means that pre-MIME parsing (mm-uu-dissect) is only done when
MIME isn't found.  Apparently, a MIME message with only a text/plain
part makes mm-dissect-buffer return nil, so it is treated as a
pre-MIME message.  So messages with CT parameters, such as
format=flowed, or generally any non-trivial MIME message, is treated
as a text part and mm-uu-dissect is never run.

Perhaps mm-uu-dissect should be run on all text/plain parts?  Or all
text/.* parts?  Opinions?