[wp-trac] [WordPress Trac] #24487: is_email() does not recognize IDN domains

[WordPress Trac]

#24487: is_email() does not recognize IDN domains
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 Reporter:  OlegCorner          |       Owner:
     Type:  defect (bug)        |      Status:  new
 Priority:  normal              |   Milestone:  Future Release
Component:  Formatting          |     Version:  3.5.1
 Severity:  minor               |  Resolution:
 Keywords:  has-patch is-email  |     Focuses:
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Comment (by rmccue):

 It's worth mentioning that WordPress now includes an IDN parser inside
 Requests: `Requests_IDNAEncoder`. We could convert IDN domains to their
 ASCII representation, and if that fails, the domain is invalid. If it
 succeeds, it can then go through the regular email checks.

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Ticket URL: <https://core.trac.wordpress.org/ticket/24487#comment:5>
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