[wp-trac] [WordPress Trac] #42693: WordPress 4.9 sends an "admin email address was changed" message to you at example.com on new install

[WordPress Trac]

#42693: WordPress 4.9 sends an "admin email address was changed" message to
you at example.com on new install
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 Reporter:  tigertech                             |       Owner:
     Type:  defect (bug)                          |      Status:  new
 Priority:  normal                                |   Milestone:  4.9.2
Component:  Upgrade/Install                       |     Version:  4.9
 Severity:  normal                                |  Resolution:
 Keywords:  has-patch needs-testing dev-feedback  |     Focuses:
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Comment (by SergeyBiryukov):

 Replying to [comment:5 tigertech]:
 > [https://tools.ietf.org/html/rfc2606 RFC 2606] specifies that the
 ".invalid" TLD is guaranteed never to exist and is intended for purposes
 like this.

 It also states that `example.com` is a reserved name that can be used for
 a purpose like this.

 What about keeping the current address and just checking for
 `@example.com` before sending the notifications? I think it's a bit
 cleaner than `@your.domain.example`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42693#comment:12>
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