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Non-ASCII in email address ?

From: KUROSAKA Teruhiko <kuro@bhlab.com>
Date: Thu, 24 Jun 2004 09:46:20 -0700
Message-ID: <40DB055C.1020007@bhlab.com>
To: www-international@w3.org

I'm monitoring Struts (JSP/Servlet based application development
framework) development mailing list and this bug report
cauthg my eyes:

Here, the submitter claims that email address whose user
portion (user@domain) contains a letter u with diaeresis
(U+00fc) should be allowed by the Struts validator component.
The submitter reasons that since IDN allows non-ASCII
in the domain name, non-ASCII should be allowed in email
address as well.

This reasoning sounds logical but I haven't heard about
a discussion legalizing non-ASCII character in the
email addresses.  Am I right to assume that
email addresses must be all in ASCII ? (By email address,
I mean user@domain, not the real names put inside () after
user@domain, or outside of <user@domain> which are allowed
to have non-ASCII by MIME for long time).

KUROSAKA ("Kuro") Teruhiko
San Francisco, California, USA
Received on Thursday, 24 June 2004 12:46:23 UTC

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