Re: [regext] Internationalized Email Addresses and EPP
Taras Heichenko <tasic@academ.kiev.ua> Mon, 23 November 2020 21:33 UTC
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From: Taras Heichenko <tasic@academ.kiev.ua>
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Date: Mon, 23 Nov 2020 23:33:36 +0200
Cc: "beldmit@gmail.com" <beldmit@gmail.com>, "alex.mayrhofer.ietf@gmail.com" <alex.mayrhofer.ietf@gmail.com>, "Gould, James" <jgould@verisign.com>, "regext@ietf.org" <regext@ietf.org>, "Klaus.Malorny@knipp.de" <Klaus.Malorny@knipp.de>
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To: "Hollenbeck, Scott" <shollenbeck=40verisign.com@dmarc.ietf.org>
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Subject: Re: [regext] Internationalized Email Addresses and EPP
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> On 23 Nov 2020, at 22:07, Hollenbeck, Scott <shollenbeck=40verisign.com@dmarc.ietf.org> wrote: > >> -----Original Message----- >> From: Taras Heichenko <tasic@academ.kiev.ua> >> Sent: Monday, November 23, 2020 1:46 PM >> To: Dmitry Belyavsky <beldmit@gmail.com> >> Cc: Hollenbeck, Scott <shollenbeck@verisign.com>; >> Klaus.Malorny@knipp.de; regext@ietf.org; Gould, James >> <jgould@verisign.com>; alex.mayrhofer.ietf@gmail.com >> Subject: [EXTERNAL] Re: [regext] Internationalized Email Addresses and EPP >> >> Caution: This email originated from outside the organization. Do not click links >> or open attachments unless you recognize the sender and know the content >> is safe. >> >> Hi! >> >>> On 23 Nov 2020, at 17:00, Dmitry Belyavsky <beldmit@gmail.com> wrote: >>> >>> Dear Scott, >>> >> >> [skip] >> >>> >>> This may be the path of least resistance. I'm still trying to think through hat >> would happen if a registry returns an internationalized email address to a >> registrar that doesn't expect one. This could happen after a domain transfer, >> for example. Is this a problem? If not, maybe we could just get by without >> any other protocol changes or extensions. >>> >>> From my point of view, if the registry has implemented EAI support, all the >> registrars will have to do it. They should deal with the clients with such emails >> _somehow_. >>> E.g., they hardly can reject the transfer relying on this reason. >> >> There are cases when registry cannot enforce registrars to implement some >> features. But I see no problem in the registry response with EAI. EPP works >> with UTF-8 encoding so EAI should not cause the EPP interface crash. Such >> email can cause strange symbols in the web interface but as for me it should >> not bring serious problems. > > That's only true if you're not also doing syntax checking of the local part outside of what your XML parser is doing with the schema. A regular expression to match an ascii-only local part would NOT match an internationalized email address. Usually, software developers use libraries (libxml2 usually) to parse XML. If the XML contains encoding=utf-8 in its header it would be instruction for the parser to use utf-8 encoding. Of course, further checking will give an error if we try to parse data returned from a registry. But I see no reason to parse this data – we should show what we got from the registry. (Of course, it does not mean that this is impossible.) > > Scott > > _______________________________________________ > regext mailing list > regext@ietf.org > https://www.ietf.org/mailman/listinfo/regext -- Taras Heichenko tasic@academ.kiev.ua
- [regext] Internationalized Email Addresses and EPP Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Barry Leiba
- Re: [regext] Internationalized Email Addresses an… Gould, James
- Re: [regext] Internationalized Email Addresses an… Dmitry Belyavsky
- Re: [regext] Internationalized Email Addresses an… Mario Loffredo
- Re: [regext] Internationalized Email Addresses an… Gould, James
- Re: [regext] Internationalized Email Addresses an… John Levine
- Re: [regext] Internationalized Email Addresses an… Gould, James
- Re: [regext] Internationalized Email Addresses an… John Levine
- Re: [regext] Internationalized Email Addresses an… Gould, James
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Dmitry Belyavsky
- Re: [regext] Internationalized Email Addresses an… Mario Loffredo
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Jiankang Yao
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Klaus Malorny
- Re: [regext] Internationalized Email Addresses an… Gould, James
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Klaus Malorny
- Re: [regext] Internationalized Email Addresses an… Gould, James
- Re: [regext] Internationalized Email Addresses an… Klaus Malorny
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Dmitry Belyavsky
- Re: [regext] Internationalized Email Addresses an… Mario Loffredo
- Re: [regext] Internationalized Email Addresses an… Alexander Mayrhofer
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Matthias Pfeifer
- Re: [regext] Internationalized Email Addresses an… Dmitry Belyavsky
- Re: [regext] Internationalized Email Addresses an… Gould, James
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… John Levine
- Re: [regext] Internationalized Email Addresses an… Dmitry Belyavsky
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Hollenbeck, Scott
- Re: [regext] Internationalized Email Addresses an… Patrick Mevzek
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Taras Heichenko
- Re: [regext] Internationalized Email Addresses an… Gould, James