<?php // $rcmail_config['additional_message_headers']['X-Remote-Browser'] = $_SERVER['HTTP_USER_AGENT']; // $rcmail_config['additional_message_headers']['X-Originating-IP'] = $_SERVER['REMOTE_ADDR']; // $rcmail_config['additional_message_headers']['X-RoundCube-Server'] = $_SERVER['SERVER_ADDR']; // if( isset( $_SERVER['MACHINE_NAME'] )) { // $rcmail_config['additional_message_headers']['X-RoundCube-Server'] .= ' (' . $_SERVER['MACHINE_NAME'] . ')'; // } // To remove (e.g. X-Sender) message header use null value // $rcmail_config['additional_message_headers']['X-Sender'] = null; ?>