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Re: Testing UTF-8 email addresses

From: Paul Deuter <pdeuter@zendesk.com>
Date: Wed, 29 May 2013 08:00:37 -0700
Message-ID: <CABb+rrOwy+wVmQXkWa7AistAMA03L60xr7JMzOP818qpe_42JA@mail.gmail.com>
To: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
Cc: www-international@w3.org
Hi Leif,

The experience that you are describing is the punycode workaround that has
been employed to interoperate with  "ascii" only providers.  You have to
hand encode your address into punycode because those providers cannot deal
with non-ascii addresses.  Even though your address can be displayed using
UTF-8, internally it is always an all-ascii address.

Presumably we should not need to employ the punycode workaround anymore
because UTF-8 address are fully supported in the latest RFCs.  But in
practice ... it is hard to find providers that have embraced the latest
specs.  It seems that many providers allow the user to use non-ASCII
characters but then internally encode the address in an all-ascii form when
they send it over it over the wire.


2013/5/29 Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>

> Just a question - to you or whoever: Is “UTF-8 email address” something
> other than e-mail addresses where the domain name is an IDN? Or does it
> related to the part before the @-character?
> Btw: As a person who has personal experience over some years with using
> the former - an e-mail address with an IDN domain name, I find that the
> only trouble I have is when some online service asks me to enter my
> email address: It ought to be possible to type foo@målform.example.com
> - in decoded form. But I constantly have to use the IDN coded form -
> foo@xn--mlform-iua.example.com.
> Leif Halvard Silli
> Paul Deuter, Mon, 27 May 2013 14:00:38 -0700:
> > My company wants to begin supporting UTF-8 email addresses.  However we
> are
> > finding it difficult to do real world end-to-end testing because we
> cannot
> > find an email provider that allows a user to create an email address with
> > non-ASCII characters.
> >
> > Does anyone know of an email provider that I can sign-up with and create
> an
> > email address with UTF-8 characters?
> >
> > Thanks in advance,
> > Paul
> >
> > --
> > Paul Deuter
> > Engineering Director: Sustaining and Internationalization
> >
> > Zendesk <http://www.zendesk.com/>
> > Mobile: +1.510.666.5960  |  Skype: paulkdeuter

Paul Deuter
Engineering Director: Sustaining and Internationalization

Zendesk <http://www.zendesk.com/>
Mobile: +1.510.666.5960  |  Skype: paulkdeuter
Received on Wednesday, 29 May 2013 18:41:34 UTC

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