allowing coding invalid systems

["Jochen Küpper" <jochen-+It19tn3Rl9sbm7dSapR3bNAH6kLmebB@public.gmane.org>]

I have a homebuild function to mail-forward (spam) messages to the
appropriate address. I'd liked to be disturbed as little as possible
by potential problems with these messages, so I switch off some syntax
checks:
,----[(let ...]
|        (message-syntax-checks '((control-chars . disabled)
|                                 (illegible-text . disabled)
|                                 (sender . disabled)))
`----[...body...]

However, since more and more spam is send using wrong coding systems, i.e. 
,----
| charset="unicode-1-1-utf-7"
`----
sending a digest containing this message fails Gnus telling me that
the coding system is not valid.

Is there a way to force sending of such messages? 

If not, would there be a way to check for messages that have the wrong
charset and  exclude them from the digest?

Greetings,
Jochen
-- 
Einigkeit und Recht und Freiheit                http://www.Jochen-Kuepper.de
    Liberté, Égalité, Fraternité                GnuPG key: CC1B0B4D
        (Part 3 you find in my messages before fall 2003.)