RMAIL bails out with coding-system-error

[David Kuehling]

I recently got a mail in my inbox, that contains the following
header-line:

X-Coding-System: japanese-shift-jisx0213-unix

Now whenever I want to read that mail using RMAIL, the following error
is signaled:

Debugger entered--Lisp error: 
  (coding-system-error japanese-shift-jisx0213-unix)
  check-coding-system(japanese-shift-jisx0213-unix)
  rmail-show-message(105)
  rmail-summary-goto-msg(nil)

I cannot even delete that message, since that will as well signal that
error.

Looks like someone forgot a `condition-case' ??

I'm using Emacs/Mule 21.1 with MULE-UCS extension installed, everything
as it came with my Debian/Woody.

David Kühling
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