[EAI] Re: draft-hurtta-eai-messagestore-00.txt

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

Frank Ellermann <nobody at xyzzy.claranet.de> writes in gmane.ietf.ima:

> | To discover message is UTF8SMTP message may require that
> | all message header fields (including header fields from
> | MIME body parts) are parsed.
> 
> As always that violates anything I think to know about data
> abstraction and modularization.  MIME part headers are not
> the business of agents transporting MIME 1.0 messages.  You
> are not designing message stores for 7bit MUAs.  If "old"
> 8bit MUAs can't handle a message/utf-8 part within an 8bit
> message/rfc822 it's no problem to be solved by the MDA:

You are saying that.

Was that discussed on meeting? You was suggested to ask
from MIME experts that

       Is UTF-8 possible in MIME version 1.0 header fields ?



What was result?


My feel is that
   - If UTF-8 can be added to address and subject
     header fields without label, then UTF-8 can be added also
     to MIME header fields without label.

   - And if HDR=UTF8SMTP option is added ESMTP, it can cover also
     MIME header fields. MIME header field syntax is already updated 
     without changing MIME-Version header field. So changing MIME header 
     field syntax yet one more time is not different.

   - Label
        MIME-Version: 2.0
     may be usefull to indicate that downgrade is required also
     for header fields on MIME structure. 


/ Kari Hurtta


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