[wp-trac] [WordPress Trac] #51030: Error in wp_mail function

[WordPress Trac]

#51030: Error in wp_mail function
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 Reporter:  hichembelhadj                 |       Owner:  (none)
     Type:  defect (bug)                  |      Status:  new
 Priority:  normal                        |   Milestone:  5.5.1
Component:  Mail                          |     Version:
 Severity:  normal                        |  Resolution:
 Keywords:  needs-patch needs-unit-tests  |     Focuses:
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Comment (by khag7):

 Replying to [comment:7 ayeshrajans]:

 >is_email is mostly used for front end uses, so it should be strict to
 only accept real life email addresses as opposed to pure RFC addresses.

 I agree that is_email is the best choice for validating input from form
 fields where we'd expect a "normal" email address. (i.e. "front end uses")

 But "behind the scenes" it should be acceptable for PHPMailer to allow
 `email at localhost`. After all, this issue was created specifically
 ''because'' the updates in 5.5 broke functionality for some users.

 If changing the validation for wp_mail to use PHPMailer's 'html5'
 validation instead of 'is_email' fixes the issue without creating any new
 issues, it feels like the right solution.

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Ticket URL: <https://core.trac.wordpress.org/ticket/51030#comment:8>
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