Ticket #18926: 18926.2.diff

wp-includes/pluggable.php

@@ -433 +433 @@
         try {
                 $phpmailer->Send();
         } catch ( phpmailerException $e ) {
+                if ( WP_DEBUG )
+                        error_log( sprintf('Cannot send mail.  Subject: %s -- Error: %s', $subject, $e->getCode(), $e->getMessage() ) );
+                do_action( 'wp_mail_fail', new WP_Error( $e->getCode(), $e->getMessage() ) );
                 return false;
         }