[wp-trac] [WordPress Trac] #15448: wp_mail() sets Content-Type header twice for multipart emails

[WordPress Trac]

#15448: wp_mail() sets Content-Type header twice for multipart emails
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 Reporter:  rmccue                               |       Owner:  nacin
     Type:  enhancement                          |      Status:  reviewing
 Priority:  normal                               |   Milestone:  3.6
Component:  Mail                                 |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  gci has-patch westi-likes needs-     |
  refresh                                        |
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Comment (by MattyRob):

 Attaching updated diff from core code revision 686217.

 Having looked at #18493, I feel some of those changes (i.e. default to
 require a template file) may break plugins currently using the wp_mail()
 function so I haven't back ported anything from that ticket.

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Ticket URL: <http://core.trac.wordpress.org/ticket/15448#comment:28>
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