Re: [EAI] Proposed resolution of List-* and downgrade- Issues

["Charles Lindsey" <[e-mail]>]

On Wed, 30 Jul 2008 10:10:47 +0100, Frank Ellermann  
<[e-mail]> wrote:

> Martin Duerst wrote:
>
>> My understanding is that this is enough for people to figure
>> out that with EAI, they can use IRIs (encoded in UTF-8) in
>> the Archived-At header(s) of EAI messages.
>
>> If somebody thinks that's not enough, and a revision of RFC
>> 5064 is needed, please tell me.
>
> Not at this time, let's wait until the dust of IDNAbis and EAI
> settles.  BCP 9 mumbles something about "six months", but IMO
> an RFC 5064 promotion can wait until EAI, 2822upd, and IDNAbis
> catch up.

Indeed so.

What we would want to write is
    Archived-At: <http://archive.mañana.com>
which is an IRI (using UTF-8, as always with IRIs) which, upon conversion  
to a URI, would simply %-encode that 'ñ'.

But would that then constitute a valid URI? Who knows until  
IDNAbis/whoever clarifies the matter. They might well decree that valid  
URIs for that purpose have to be in punycode, which would in turn require  
the IRI to be in punycode, which would mean a special downgrading at any  
UTF8SMTP-ASCII interface.

The same applies to mailto: [IU]RIs, except that mailto-bis is more likely  
to be whatever Martin proposes, and we are in a better position to lean on  
Martin :-) .

-- 
Charles H. Lindsey ---------At Home, doing my own thing------------------------
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