Ticket #18926: pluggable.php.diff

wp-includes/pluggable.php

@@ -433 +433 @@
         try {
                 $phpmailer->Send();
         } catch ( phpmailerException $e ) {
+                do_action( 'wp_mail_fail', new WP_Error( $e->getCode(), $e->getMessage() ) );
                 return false;
         }