How to stop Exchange from sending Mailer Daemon or Failure response emails?

Posted on 2004-11-26
Medium Priority
Last Modified: 2008-01-16
My exchange server sends out thousands of auto response Mailer-Daemon messages a day to replys of fictitous emails accounts at my domain.  Is there a way to prevent my exchange server from sending back a reply that there is no such email address.  I do not want to purchase a third party program.  Does exchange have the ability to just not send a reply?
Question by:fizbin01
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Expert Comment

ID: 12682468
Which version of Exchange?

There are some options without third party, but it depends on the Exchange version.


Author Comment

ID: 12682716
Version 20003
LVL 104

Accepted Solution

Sembee earned 500 total points
ID: 12682812
For ficticious accounts there is an option in Exchange 2003 to stop Exchange even accepting delivery of the messages. It does this as the SMTP level, forcing the remote SMTP server to generate the NDR. This means that a genuine mistype will be spotted very quickly by the sender.


1. Expand ESM, Message Delivery.
2. Right click on "Message Delivery" and choose Properties.
3. Click on the tab "Recipient Filtering".
4. Enable the option "Filter Recipients who are not in the directory."

You then need to enable the Recipient Filter on the SMTP Server.

1. Still in ESM, Expand Admin Groups, <your admin groups>, Server, <your server>, Protocols, SMTP.
2. Right click on SMTP Virtual Server and choose Properties.
3. Click on "Advanced" next to the IP address on the first tab.
4. With the IP address selected, choose "Edit".
4. Enable "Apply Recipient Filter".
5. Click Apply/OK until clear.


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