Mail Relay from Internal Users

26 Feb 2009 5:35 PM

Rob

Exchange 2007

I am seeing some emails being sent (relayed) to users from email addresses
within my organization that users are not actually sending. Most of them are
from users inside my org to other users inside my org. How do I stop this?

Received: from 89.141.110.189.dyn.user.ono.com (89.141.110.189) by
MYSERVER.my.domain.com
(192.168.1.94) with Microsoft SMTP Server id 8.1.177.3; Thu, 26 Feb 2009
08:02:19 -0800
x-ms-exchange-organization-authas: Anonymous
x-ms-exchange-organization-authsource: MYSERVER.my.domain.com
received-spf: None (MYSERVER.my.domain.com:
j***@mydomain.com does not designate permitted sender hosts)
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Subject: Order Shipped -- Order #37202
Date: Thu, 26 Feb 2009 08:02:19 -0800
Message-ID:
<acce16bd-1ec1-4618-b029-9d8a47c14***@MYSERVER.my.domain.com>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
X-MimeOLE: Produced By Microsoft Exchange V8.1
Thread-Topic: Order Shipped -- Order #37202
Thread-Index: AcmYK5r0kr1x/eMdSyuMw0hSmuMkeQ==
X-Priority: 1
Priority: Urgent
Importance: high
From: <j***@mydomain.com>
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To: "John Doe" <j***@mydomain.com>

27 Feb 2009 4:52 PM

Bharat Suneja [MSFT]

HOW TO: Prevent annoying spam from your own domain
http://exchangepedia.com/blog/2008/09/how-to-prevent-annoying-spam-from-your.html

--
Bharat Suneja
Microsoft Corporation
blog: exchangepedia.com/blog

This posting is provided "AS IS" with no warranties, and confers no
rights. Please do not send email directly to this alias. This alias is for
newsgroup purposes only.
----------------------------

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"Rob" <R**@discussions.microsoft.com> wrote in message
news:5418E32F-C852-4B50-9D5E-EF1895132D66@microsoft.com...
> Exchange 2007
>
> I am seeing some emails being sent (relayed) to users from email addresses
> within my organization that users are not actually sending. Most of them
> are
> from users inside my org to other users inside my org. How do I stop this?
>
> Received: from 89.141.110.189.dyn.user.ono.com (89.141.110.189) by
> MYSERVER.my.domain.com
> (192.168.1.94) with Microsoft SMTP Server id 8.1.177.3; Thu, 26 Feb 2009
> 08:02:19 -0800
> x-ms-exchange-organization-authas: Anonymous
> x-ms-exchange-organization-authsource: MYSERVER.my.domain.com
> received-spf: None (MYSERVER.my.domain.com:
> j***@mydomain.com does not designate permitted sender hosts)
> Content-class: urn:content-classes:message
> MIME-Version: 1.0
> Content-Type: text/html;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
> Subject: Order Shipped -- Order #37202
> Date: Thu, 26 Feb 2009 08:02:19 -0800
> Message-ID:
> <acce16bd-1ec1-4618-b029-9d8a47c14***@MYSERVER.my.domain.com>
> X-MS-Has-Attach:
> X-MS-TNEF-Correlator:
> X-MimeOLE: Produced By Microsoft Exchange V8.1
> Thread-Topic: Order Shipped -- Order #37202
> Thread-Index: AcmYK5r0kr1x/eMdSyuMw0hSmuMkeQ==
> X-Priority: 1
> Priority: Urgent
> Importance: high
> From: <j***@mydomain.com>
> To: "John Doe" <j***@mydomain.com>
>