Cisco Cisco Email Security Appliance X1070 情報ガイド
How can I prevent the backend infrastructure from
being exposed in outbound messages?
being exposed in outbound messages?
Document ID: 118172
Contributed by Stephan Fiebrandt and Jason Sikorski, Cisco TAC
Engineers.
Aug 07, 2014
Engineers.
Aug 07, 2014
Contents
Introduction
Solution
Solution
Introduction
This document describes how to prevent the backend infrastructure from being exposed in outbound
messages.
messages.
Solution
The following Message Filter will strip "Received" headers from outbound mail, giving the illusion that the
Cisco appliance is the "last hop" before mail reaches the Internet:
Cisco appliance is the "last hop" before mail reaches the Internet:
strip−Received:
if (recv−listener == "Outbound"){
strip−header('Received');
}
Updated: Aug 07, 2014
Document ID: 118172