wpmem_notify_addr

/**
 * This is a single email example.  To change the
 * notification address just return the filtered result.
 */
add_filter( 'wpmem_notify_addr', function( $email ) {
    return 'notify@mydomain.com';
});


/**
 * This is a multiple email example.  Note that your outgoing
 * mail server must support receiving multiple emails as 
 * comma separated values for this to be supported.
 */
add_filter( 'wpmem_notify_addr', function( $email ) {
    return 'notify1@mydomain.com, notify2@mydomain.com';
});


/**
 * Notification addresses can be changed based on your own
 * crititeria, supposing you know a little PHP.
 */
add_filter( 'wpmem_notify_addr', function( $email ) {
    
    // Change the email based on your own custom logic.
    if ( $some_criteria ) {
        $email = 'some_other_email@mydomain.com';
    }
    
    return $email;
});