[EAI] Message-ID (Re: I-D ACTION:draft-ietf-eai-downgrade-03.txt)

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

Internet-Drafts at ietf.org writes in gmane.ietf.ima:

> A New Internet-Draft is available from the on-line Internet-Drafts 
> directories.
> This draft is a work item of the Email Address Internationalization Working Group of the IETF.
> 
> 	Title		: Downgrading mechanism for Email Address Internationalization
> 	Author(s)	: Y. Yoneya, K. Fujiwara
> 	Filename	: draft-ietf-eai-downgrade-03.txt
> 	Pages		: 18
> 	Date		: 2007-3-8
> 	
> Traditional mail systems handle only US-ASCII characters in SMTP
>    envelope and mail header fields.  The Email Address
>    Internationalization is implemented by allowing UTF-8 characters in
>    SMTP envelope and mail header fields (UTF8SMTP).  To deliver Non-
>    ASCII mail address via UTF8SMTP non-compliant environment, some sort
>    of converting mechanism (i.e. downgrading) is required.  This
>    document describes requirements for downgrading, SMTP downgrading,
>    Email header downgrading and implementation consideration.

chaprer "6.  Email header Downgrading"


|   Message-ID:, Date:, In-Reply-To:
|      "ID"s and "Date"s does not contain UTF-8 characters.


RFC 2822:

message-id      =       "Message-ID:" msg-id CRLF

msg-id          =       [CFWS] "<" id-left "@" id-right ">" [CFWS]

CFWS            =       *([FWS] comment) (([FWS] comment) / FWS)

draft-ietf-eai-utf8headers-03.txt:

   comment = "(" *([FWS] utf8-ccontent) [FWS] ")"



So I'm not completely sure that Message-ID: -header field
does not contain UTF-8 characters.

Same apply also to Date -header field.

/ Kari Hurtta


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