Re: [regext] Internationalized Email Addresses and EPP

Taras Heichenko <tasic@academ.kiev.ua> Mon, 23 November 2020 21:50 UTC

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From: Taras Heichenko <tasic@academ.kiev.ua>
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Date: Mon, 23 Nov 2020 23:50:43 +0200
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To: Patrick Mevzek <pm@dotandco.com>
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Subject: Re: [regext] Internationalized Email Addresses and EPP
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> On 23 Nov 2020, at 23:39, Patrick Mevzek <pm@dotandco.com> wrote:
> 
> 
> 
> On Mon, Nov 23, 2020, at 15:55, John Levine wrote:
>> In article <f57ec7e59aed47ce96f747f10c7468f1@verisign.com> you write:
>>>  [SAH] I’m not talking about rejecting a transfer. I’m talking about what a registrar that does not support EAI would/should do if
>>> it is the receiving registrar of a domain that includes contacts using internationalized email addresses and those addresses aren’t
>>> supported by the registrar. How should this work?
>> 
>> Reject the transfer -- you get what you pay for.
>> 
>> Transfers only happen when a registrant asks for them. If registrars
>> find that they're losing customers due to inability to handle EAI
>> addresses, they can decide that it's an acceptable cost or they can
>> upgrade their software, either to handle EAI, or to ask the registrant
>> to change her e-mail address to an ASCII one and try again.
> 
> A bit harsh/unrealistic: the new registrar may have 0 way to know, before
> the transfer succeeds that it has this problem to handle.
> 
> Because:
> - contact:info commands can be refused by registry on contacts not owned
> (so new registrar can not see email addresses of current contacts owned by current
> registrar), or the result be filtered
> - data may not show at all in whois/RDAP

Just a question: How can a registrar accept the transfer of a domain by a user if it does
not check that this domain is owned by this user?
This is a direct way to the fraud.

> 
> Hence what will happen:
> - the registrar starts the transfer
> - it succeeds after some time
> - NOW and only NOW can he by surprise discover he has a problem if
> he tries to synchronize the contact data from registry to its own systems.
> (he won't have problems if he just creates new contacts and update the domain,
> as many/some/the majority of registrar do).
> 
> That defeats the "do not surprise" law and creates harm for no reason.
> 
> Either the registry has to mandate outside of protocol (ex: technical accreditation
> test) that every registrar knows how to handle any possible email address, including
> EAI case, OR there should be a way for a registrar to dynamically signal the registry
> it wants/do not want to handle this case, OR the registry has to provide something
> that is forward compatible (hence: 1) not breaking current software but 2) allows
> updated software to enjoy more features)
> 
> -- 
>  Patrick Mevzek
>  pm@dotandco.com
> 
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--
Taras Heichenko
tasic@academ.kiev.ua