Cisco Cisco Email Security Appliance X1070 사용자 가이드
13-21
Cisco AsyncOS 9.1 for Email User Guide
Chapter 13 Anti-Spam
Determining Sender IP Address In Deployments with Incoming Relays
Notes for
:
•
The Cisco appliance ignores these headers.
•
The Cisco appliance receives the message (not counted as a hop).
•
First hop (and incoming relay).
•
Second hop. This is the sending MTA. The IP address is 7.8.9.1.
•
The Cisco appliance ignores these Microsoft Exchange headers.
shows the incoming relay for path A (above) as configured in the Add Relay page in the
GUI:
4
Received: from sending-machine.spamham.com (sending-machine.spamham.com [
7.8.9.1
])
by mx.customerdomain.org (Postfix) with ESMTP id 4F3DA15AC22 for
<joefoo@customerdomain.org>
5
Received: from linux1.thespammer.com (HELO linux1.thespammer.com) ([10.1.1.89])
by sending-machine.spamham.com with ESMTP;
Received: from exchange1.thespammer.com ([10.1.1.111]) by linux1.thespammer.com
with Microsoft SMTPSVC(6.0.3790.1830);
Subject: Would like a bigger paycheck?
Date: Wed, 21 Sep 2005 13:46:07 -0700
From: "A. Sender" <asend@otherdomain.com>
To: <joefoo@customerdomain.org>
Table 13-1
A Series of Received: Headers (Path A Example 1) (continued)
Table 13-2
A Series of Received: Headers (Path A Example 2)
1
Received: from mta.customerdomain.org ([10.2.3.5]) by ironport.customerdomain.org
with ESMTP; 21 Sep 2005 13:46:07 -0700
2
Received: from mx.customerdomain.org (mx.customerdomain.org) [10.2.3.4]) by
mta.customerdomain.org (8.12.11/8.12.11) with ESMTP id j8LKkWu1008155 for
<joefoo@customerdomain.org>;
3
Received: from sending-machine.spamham.com (sending-machine.spamham.com [
7.8.9.1
])
by mx.customerdomain.org (Postfix) with ESMTP id 4F3DA15AC22 for
<joefoo@customerdomain.org>;