Watermarking, checking bounced mail with sender address

ACHA | Cor van den Berghe cbe at acha.nl
Thu Jul 8 09:40:24 IST 2010

Sorry that I didn't make it clear enough.

I was under the impression that MailScanner does 2 checks before it checks the watermark:
1. check if the mail has no sender 
2. check if the mail is bounced

If these 2 conditions are true than MailScanner checks the watermark.

When I check the mail that has been proccessed by MailScanner I find that some messages which have no sender are marked as spam because MailScanner checked the watermark. On other bounced message, which do have a sender address the watermark is not checked

Below is a header of a bounced message which was not marked as spam and was not send to the person who got the error message

Return-Path: <?g>
Received: from 75-44-14-134.hadlaw.com (75-44-14-134.hadlaw.com [] (may be forged))
     by standic-ls.standic.lan (8.13.8/8.13.8) with ESMTP id o67FlPaf022789
     for <kruining at fakecompany.com>; Wed, 7 Jul 2010 17:47:26 +0200
Received: from (
     by rmwlaw.com.inbound15.mxlogic.net (envelope-from <drollnessnpr76 at rmwlaw.com>)
     (ecelerity r(34067)) with ECSTREAM
     id 41/73-73224-F30ZP2Q6; Wed, 7 Jul 2010 11:47:06 -0500
X-Facebook: from HADXP6 ([LBX2RvMgJV5q])
     by www.facebook.com with HTTP (ZuckMail);
Date: Wed, 7 Jul 2010 11:47:06 -0500
To: kruining at fakecompany.com
From: <postmaster at fakecompany.com>
Reply-to: drollnessnpr76 at rmwlaw.com
Subject: Delivery Status Notification (Failure)
Message-ID: 47B7B9EDAC6340DE905D63D452E09AC6 at HADXP6
X-Priority: 3
X-Mailer: ZuckMail [version 1.00]
X-Facebook-Notify: password_reset; mailid=
Errors-To: drollnessnpr76 at rmwlaw.com
MIME-Version: 1.0
Content-Type: multipart/mixed;

Again please forgive me if I can't make it more clear but English is not my native language



-----Original Message-----
From: MailScanner at ecs.soton.ac.uk [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Julian Field
Sent: donderdag 8 juli 2010 10:18
To: MailScanner discussion
Subject: Re: Watermarking, checking bounced mail with sender address

Do you mean the From: address or the envelope sender address?
MailScanner does nothing with the From: address.

On 08/07/2010 07:27, ACHA | Cor van den Berghe wrote:
> Hi all,
> As I understand it MailScanner only checks the watermark on bounced email with no sender address. Is it somehow possible to have MaiScanner check the watermark on all bounced email?
> Lately I get a lot of backscatter mail that have a From: address and I have no idea how to stop it
> Thanks for any help you can give me
> Regards,
> Cor van den Berghe


Julian Field MEng CITP CEng
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