[wp-trac] [WordPress Trac] #31992: Unicode Email Addresses

[WordPress Trac]

#31992: Unicode Email Addresses
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 Reporter:  ysalame                              |       Owner:
                                                 |  SergeyBiryukov
     Type:  defect (bug)                         |      Status:  accepted
 Priority:  normal                               |   Milestone:  6.9
Component:  Formatting                           |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-test-info has-patch has-         |     Focuses:
  screenshots has-unit-tests needs-testing       |
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Comment (by agulbra):

 Test 3/n

 **Environment:** WordPress on the tip, after August 20 or so and with
 https://github.com/WordPress/wordpress-develop/pull/5237 applied. You need
 no plugins. You may use Mailpit 1.25.0 or later to pick up outgoing mail.
 Mailpit needs to listen on localhost port 25. The installer has been run,
 but nothing added.

 I used Brave as browser and ran both on linux.

 **Steps to test:** Open the WordPress admin page. Select "users" on the
 left-hand bar, then "add new user" near the top of the screen. Enter "grå"
 as username, "grå@grå.org" as email address. Choose any name and role.
 Click "add new user" near the bottom. (Grå is Norwegian, it means grey,
 and I use that as a test since I'm Norwegian. It's pronounced as org
 backwards.)

 Click Users, select the user and click edit. You're now on .../user-
 edit.php. Scroll down to contact info and change the email address to
 something else, perhaps rød at grå.org, then click "update user" at the
 bottom.

 **Test results:** All is well if WordPress sends email to the user to
 notify about the email address change. WordPress 6.8 will not succeed in
 sending this email.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31992#comment:47>
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