[wp-trac] [WordPress Trac] #17433: localhost is not accepted as email domain

[WordPress Trac]

#17433: localhost is not accepted as email domain
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 Reporter:  sanvila                     |       Owner:
     Type:  defect (bug)                |      Status:  new
 Priority:  normal                      |   Milestone:  Future Release
Component:  Formatting                  |     Version:  3.2
 Severity:  normal                      |  Resolution:
 Keywords:  has-patch needs-unit-tests  |     Focuses:
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Comment (by nofearinc):

 What RFC or specification is being followed for email addresses? We could
 probably agree on some rules and add 50 more tests to the formatting
 phpunit group of is_email validations, and start from there with any
 refactoring.

 Another good question is whether any framework or CMS out there is doing
 it better, so that we could get some inspiration from there?

 Related: #17491, #21730, #25108, #30039

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Ticket URL: <https://core.trac.wordpress.org/ticket/17433#comment:11>
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