Re: [idn] IDNs in email message bodies

[Patrik Fältström <paf@cisco.com>]

At 15.06 +0800 01-03-26, William Tan wrote:
>  > > If the email address (local and domain parts) is, e.g., encoded in ACE
>>  > from Arabic, and a message body ends up being sent in Arabic text,
>>  > I would predict a good deal of user irritation if the email address
>>  > appeared in that running text in ASCII (with the added irritations of
>>  > embedding left-to-right text in a right-to-left script stream) because
>>  > it was pasted from a "from:" field rather than being keyed in.
>>
>>  If the person doing the copy/paste was using an IDN-aware MUA with
>>  support for Arabic, then the From: field was showing Arabic text,
>>  and that is what got copied and pasted, not ACE, so there will be no
>>  irritation.
>
>If the recipient system is not IDN aware, it would break, defeating the
>purpose of IDNA.  And even if it is IDN aware, it might not support the
>character set being used to represent the IDN email address.

Not if the clipboard contain the ACE encoding regardless of whether 
the "sending" application can handle ACE or not.

I.e. the application which put things in the clipboard buffer should 
do it in the ace encoding -- and this is why ace->local script is 
only a display issue.

    paf