On 5/27/2010 2:29 PM, Alejandro Cabrera Obed wrote:
> Dear all, I've just made a test from Gmail and my Thunderbird mail
> client sending a mail to a non-real IDN mail user:
>
> alejan...@aƱos.com.ar
>
> - My Thunderbird says: "An error ocurred while sending mail. Tha mail
> servers responded: 5.1.3 Bad recipient address syntax" (THIS IS A
> SERVER RESPONSE)
>   

This is due to a (very old) CLIENT bug, [1]

The server is just complaining about bad CLIENT syntax.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=127399

> - The Gmail webmail says: "One o more mail address in "To:" box is not
> recognized" (THIS IS A CLIENT RESPONSE)
>
> So, I think the IDN domain name support is not complete nowadays,
> neither by mail servers nor by mail clients. So it's not convenient
> the IDN mail implementation in this bad situation.
>
> What do you think about this matter ???
>
> Really thanks
>
> 2010/5/26 Wietse Venema <wie...@porcupine.org>:
>   
>> Alejandro Cabrera Obed:
>>     
>>> Wietse, thanks...but in Postfix I have to work with the ?o?o.com.ar
>>> domain name or with the xn--oo-yjab.gov.ar punycode domain name ???
>>>       
>> Read carefully.
>>
>> The MAIL CLIENT must tranform non-ASCII domain names before
>> sending MAIL FROM or RCPT TO commands.
>>
>>        Wietse
>>
>>     
>
>
>   

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