hey all,
the setup of our email includes postfix -- brightmail -- exchange 2007, all of our employees are getting loads of Undeliverable emails and i have no idea how to stop them, an example is below. i have done some digging in logs etc and dispostion is open proxy list and says it sends a notification and deletes message, another post said something about the default-firewall policy which is not editable! please help its driving me crazy!
EXAMPLE MAIL:
Delivery has failed to these recipients or distribution lists: {removed}
An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
Diagnostic information for administrators:
Generating server: ms-mail-1
{removed}
#< #5.0.0> #SMTP#
Original message headers:
X-AuditID: 0afe011b-0000018000000538-06-493b1b6866b7
Received: from relaymail.piit.co.uk ([192.168.x.x] RDNS failed) by
ms-mail-1.partners-in-it.co.uk with Microsoft
SMTPSVC(6.0.3790.3959); Sun, 7 Dec 2008 00:40:08 +0000
Received: from CPE-58-161-67-181.nsw.bigpond.net.au (cpe-58-161-67-181.nsw.bigpond.net.au [58.161.67.181])
by relaymail.piit.co.uk (Postfix) with SMTP id 87E2A1382FF
for <{removed}>; Sun, 7 Dec 2008 00:40:04 +0000 (UTC)
To: <{removed}>
Subject: Your order
From: <{removed}>
MIME-Version: 1.0
Importance: High
Content-Type: text/html
Message-ID: <20081207004004.87E2A1382FF@relaymail.piit.co.uk>
Date: Sun, 7 Dec 2008 00:40:04 +0000
[Edited: Removed personal information per the community rules and regulations.]
Message Edited by Brad_C on 12-07-2008 02:15 PM