Fix Wordpress emails disappearing due to incorrect return-path set from phpmailer

email_return_path_fix.php

<?php
/*
Plugin Name: Email Return Path Fix
Author: Abdussamad Abdurrazzaq
*/
class email_return_path {
    function __construct() {
        add_action( 'phpmailer_init', array( $this, 'fix' ) );   
    }

    function fix( $phpmailer ) {
        $phpmailer->Sender = $phpmailer->From;
    }
}

new email_return_path();
?>