[wp-trac] [WordPress Trac] #22837: WP Needs to Set "Sender" and "Reply-To" or DKIM/DMARC will not work using wp-mail (via PHPMailer)

[WordPress Trac]

#22837: WP Needs to Set "Sender" and "Reply-To" or DKIM/DMARC will not work using
wp-mail (via PHPMailer)
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 Reporter:  kellogg9      |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  high          |   Milestone:  Future Release
Component:  Mail          |     Version:  3.4.2
 Severity:  major         |  Resolution:
 Keywords:  needs-patch   |     Focuses:
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Comment (by cybmeta):

 I've been using a similar snippet for a while but without the Reply-To
 header; adding it makes DKIM to fail for me.

 Replying to [comment:11 cbutlerjr]:
 > I can see the possibility of changing this so that in the default
 everything matches.  However, there's not a need to modify the function
 (pluggable or otherwise) as @kellogg9 mentioned. The phpmailer settings
 can be handled with the phpmailer_init action.
 >
 > phpmailer_init fires after PHPMailer is initialized.  So the action can
 be used to cleanup any settings as needed.  I believe that until a full
 fix is in place, the following would patch it:
 >
 > {{{
 > add_action( 'phpmailer_init', 'my_phpmailer_dkim_cleanup' );
 > function my_phpmailer_dkim_cleanup( $phpmailer ) {
 >     if ( '' == $phpmailer->Sender ) {
 >         $phpmailer->Sender = $phpmailer->From;
 >         $phpmailer->AddReplyTo( $phpmailer->From );
 >     }
 > }
 > }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/22837#comment:12>
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