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RE: "International" email addresses

From: Shawn Steele <Shawn.Steele@microsoft.com>
Date: Wed, 19 Nov 2014 18:09:28 +0000
To: Steven Pemberton <Steven.Pemberton@cwi.nl>, Anne van Kesteren <annevk@annevk.nl>
CC: "www-international@w3.org" <www-international@w3.org>, Forms WG <public-forms@w3.org>
Message-ID: <5b905a47a07f4549865c02a50a8c302e@CY1PR0301MB0731.namprd03.prod.outlook.com>
This may not be in the form you want it, but maybe you'd find it helpful.
http://blogs.msdn.com/b/shawnste/archive/2014/04/01/eai-email-address-internationalization-address-validation.aspx 

As John said, the domain rules are completely different, requiring IDN validation.  The local part is "just" allowing everything >= U+0080.

-Shawn


-----Original Message-----
From: Steven Pemberton [mailto:Steven.Pemberton@cwi.nl] 
Sent: Wednesday, November 19, 2014 7:54 AM
To: Steven Pemberton; Anne van Kesteren
Cc: www-international@w3.org; Forms WG
Subject: Re: "International" email addresses

On Wed, 19 Nov 2014 11:06:52 +0100, Anne van Kesteren <annevk@annevk.nl>
wrote:

> On Wed, Nov 19, 2014 at 11:00 AM, Steven Pemberton 
> <Steven.Pemberton@cwi.nl> wrote:
>> So as far as I can see, an internationalised email address is:
>>
>>  address: atom-list "@" atom-list.
>>  atom-list: atom ( "." atom )*
>>  atom: C+
>>  C: any character in the world EXCEPT (),.:;<>@[\]
>>
>> a) Do you agree?
>> b) It was really hard to find this out. The internet is rife with 
>> people asking and getting bad answers. Please help the internet by 
>> being definitive.
>
> I recommend matching HTML's definition:
>
> https://html.spec.whatwg.org/multipage/forms.html#valid-e-mail-address


Unfortunately, that doesn't match our minimum requirement of accepting international addresses.

Steven

Received on Wednesday, 19 November 2014 18:10:02 UTC

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