[EAI] Re: How to prevent up-conversion (Re: Respawn "Messages on original form" (Re: I-D ACTION:draft-ietf-eai-imap-utf8-01.txt))

[Kari Hurtta <hurtta+gmane at siilo.fmi.fi>]

Harald Tveit Alvestrand <harald at alvestrand.no> writes in gmane.ietf.ima:

> --On 22. mars 2007 14:39 +0000 Charles Lindsey <chl at clerew.man.ac.uk> wrote:
> 
> > I think one of the primary requirements is that the user should be able
> > to demand, and be given, a copy of the message as actually received by
> > the MDA (plus maybe a few tracing headers added by the storage agent).
> 
> Why?
> 
> (I can see a couple of possible reasons why you would want this. But I
> can't tell from your messages which ones you are thinking of.)
> 
>                 Harald

Well, I have needed these kind functionality at least

         - For debugging   
              (as postmaster I usually require to see original message
               -- some time I answer -- sorry, that was not original
               message as received -- before I can help, I want original
               message -- not forwarded text or reformatted message. 

               This is usually related to junk filtering)

         - For learn junk filters


Also I can see that MUAs needs to see messages on original form
when checking signatures of messages. Most of signature algotihms
sign messages on form where no further encoding is not needed.
That means that all signed data is encoded to 7-bit.  

/ Kari Hurtta


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