[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:  4.8
Component:  Mail                       |     Version:
 Severity:  normal                     |  Resolution:
 Keywords:  gci has-patch westi-likes  |     Focuses:
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Comment (by dd32):

 Replying to [comment:45 MattyRob]:
 > Proof of concept:

 Thanks @MattyRob, with that I was able to duplicate the scenario. I don't
 actually think it's a valid use of PHPMailer myself, but respect that
 people use all sorts of hacks to send email..

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Ticket URL: <https://core.trac.wordpress.org/ticket/15448#comment:46>
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