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Recipient Filtering Not Working

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Recipient Filtering Not Working - 18.Jul.2007 11:00:10 AM   


Posts: 1
Joined: 18.Jul.2007
Status: offline
I've set up Recipient Filtering just as stated in this article:


However, it's not working.  I've got Apply Recepient Filter checked on my SMTP protocol, and I've got Filter Recpipients Not In Directory checked on my Global Settings.  But when you send an email to badname@mydomain.com you still get an email back that looks like this:


This is an automatically generated Delivery Status Notification

Delivery to the following recipient failed permanently:


Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 13): 550 5.1.1 User unknown

  ----- Original message -----

Received: by with SMTP id k14mr2196900bue.1184768947159;
       Wed, 18 Jul 2007 07:29:07 -0700 (PDT)
Received: by with HTTP; Wed, 18 Jul 2007 07:29:05 -0700 (PDT)
Message-ID: <4288a6ce0707180729q10f8265cu8146823864a7505@mail.gmail.com>
Date: Wed, 18 Jul 2007 10:29:05 -0400
From: "Zach Shuford" <zach@zachshuford.com>
To: bob@mydomain.com
Subject: test
MIME-Version: 1.0
Content-Type: multipart/alternative;

Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline


Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

  ----- Message truncated -----


I thought Recipient Filtering got rid of this... can anyone give me some tips on why it's not working?
Post #: 1
RE: Recipient Filtering Not Working - 18.Jul.2007 1:12:37 PM   


Posts: 481
Joined: 4.Apr.2006
From: USA
Status: offline
Hi there.

After you enable recipient filtering, Exchange validates the e-mail address before Exchange accepts the e-mail message. In this scenario, if no match for this e-mail alias appears in Active Directory, an NDR is still generated. However, in this scenario, it is the responsibility of the sending SMTP server instead of your Exchange server to generate and to deliver the NDR.

(in reply to zshuford)
Post #: 2

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