Please open a ticket at https://github.com/cakephp/cakephp/issues
This is just a discission board, not a bug tracker.
Mark
Am Samstag, 30. Januar 2016 05:33:10 UTC+1 schrieb Kim:
>
>
> - CakePHP's email validation allows non-ASCII letter characters, e.g.
> รก, in the local part of the email address (by the \p{L} unicode category
> construct). This should not be allowed, see
> https://en.wikipedia.org/wiki/Email_address#Local_part.
> - It also allows non-ASCII letter characters in the domain part. This
> allows Internationalized Domain Names (IDN). The problem here lies in the
> fact that this is not supported by the SmtpTransport. An SMTP client
> should
> convert them to so called punycode ASCII, according to
> https://lists.exim.org/lurker/message/20140812.120609.bf764769.en.html.
> MTA exim does not accept the SMTP sequence. By the way, conversion to
> punycode can be done by PHP's idn_to_ascii().
>
> This issues have been tested in the current 2.7 branch, but a quick code
> inspection confirms that they are also present in the master branch. As a
> workaround I have switched back to validation by PHP's filter_var(), used
> in a wrapper validation method.
>
> The first issue can be fixed easily, although the right RFCs have to be
> consulted. For the second issue, we have to decide if we support IDN for
> email and if we do, support it (maybe not only in the SmtpTransport).
>
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