[wp-trac] [WordPress Trac] #43542: Duplicate MIME-Version header

[WordPress Trac]

#43542: Duplicate MIME-Version header
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 Reporter:  junktrunk                            |       Owner:
                                                 |  SergeyBiryukov
     Type:  defect (bug)                         |      Status:  closed
 Priority:  normal                               |   Milestone:  5.3
Component:  Mail                                 |     Version:  4.9.4
 Severity:  normal                               |  Resolution:  fixed
 Keywords:  good-first-bug 2nd-opinion has-      |     Focuses:
  patch                                          |
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Comment (by SergeyBiryukov):

 In [changeset:"46118" 46118]:
 {{{
 #!CommitTicketReference repository="" revision="46118"
 Mail: Add a unit test to make sure `wp_mail()` does not duplicate the
 `MIME-Version` header added automatically by PHPMailer.

 See #43542.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/43542#comment:11>
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