I know this isn't Exim's problem but I hope there is something I can do with
Exim to solve the problem.
We run mail in a gateway configuration with Linux based servers acting as
incoming MX servers to perform quite a bit of pre-processing on the inbound
email before handing it off to our primary mail servers, hidden away. Our
primary mail servers have a powerful new anti-spam system that we would like
to use but now we are running into a problem with the headers of the email.
Through no fault of Exim, the mail systems don't drill down the header
rather they assume the mail is delivered from our relays, all the time. Of
course our relays are clean and the checks being performed on the mail
server side never see any spam based on their DNSBL and other checks of the
inbound servers.
So the question is this: is there something we can do with the handoff of
the mail from the relays to the back end mail systems to change the way the
header arrives. For example, a typical header arrives at the mail server
looking like this without the network stuff.
Return-Path: <xxxxx@???> Tue Sep 19 12:14:59 2006
Received: from mx3.imgate.xxxx.com [00.00.00.00] by myserver.myompany.com
with SMTP;
Tue, 19 Sep 2006 12:14:59 -0700
Received: from [81.198.144.209] (helo=HOME)
by mx3.imgate.xxxx.com with esmtp (Exim 4.50)
id 1GPl2R-0001ff-0H
for danny@???; Tue, 19 Sep 2006 15:13:47 -0400
Message-ID: <60548100082473.68FF49C539@8KXQIA>
From: "dec" <xxxxxxxx@???>
To: <danny@???>
Subject: Ride this st ock rocket
Date: Tue, 19 Sep 2006 22:16:48 +0300
MIME-Version: 1.0
X-Mailer: Microsoft Office Outlook, Build 11.0.5510
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
Thread-Index: YiX3CSRVAgoQbnugYTyuRtW3gIWVzIFZpuih
How do we get it to look something like this:
Return-Path: <xxxxx@???> Tue Sep 19 12:14:59 2006
Received: from [81.198.144.209] (helo=HOME)
by mx3.imgate.xxxx.com with esmtp (Exim 4.50)
id 1GPl2R-0001ff-0H
for danny@???; Tue, 19 Sep 2006 15:13:47 -0400
Message-ID: <60548100082473.68FF49C539@8KXQIA>
From: "dec" <xxxxxxxx@???>
To: <danny@???>
Subject: Ride this st ock rocket
Date: Tue, 19 Sep 2006 22:16:48 +0300
MIME-Version: 1.0
X-Mailer: Microsoft Office Outlook, Build 11.0.5510
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
Thread-Index: YiX3CSRVAgoQbnugYTyuRtW3gIWVzIFZpuih
The relays also server as a huge benefit to our network becasue we run
multiple inbound and outbound relays taking up all the load from the back
end mail servers.
Thanks
GA
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