<div>
that seems to kill all NDRs.<br />
If i send an email to jimbob@abcd.com and we are hosting abcd.com on the server but there is no jimbob account it does not send an ndr. &nbsp;How can i kill it for just domains that are not hosted on the box?
</div>


that seems to kill all NDRs.
If i send an email to jimbob@abcd.com and we are hosting abcd.com on the server but there is no jimbob account it does not send an ndr.  How can i kill it for just domains that are not hosted on the box?

<div>
<div class="content wysiwyg-content">
I have an exchange server that got hit by some spammer. &nbsp;Not quite sure the details of how but what i ended up with was several hunderd NDR messages that could not be delivered so they sat in the queue. &nbsp;They all had an error &nbsp;similar to this:<br />
Last Error: 450 4.1.2 &lt;sade@ms1.ibtpe.com.tw&gt;: Recipient address rejected: Domain not found<br />
Since the domains are bogus how do i turn off these NDR's for domains that are not on our server?<br />
This is an Exchange 2010 and we have around 25 domains on the box.<br />
For now i turned off NDRs all together, i realize this is not permited by RFC however it is killing the performance on the box.<br />
Please help.<br />

</div>
</div>


I have an exchange server that got hit by some spammer.  Not quite sure the details of how but what i ended up with was several hunderd NDR messages that could not be delivered so they sat in the queue.  They all had an error  similar to this:
Last Error: 450 4.1.2 <sade@ms1.ibtpe.com.tw>: Recipient address rejected: Domain not found
Since the domains are bogus how do i turn off these NDR's for domains that are not on our server?
This is an Exchange 2010 and we have around 25 domains on the box.
For now i turned off NDRs all together, i realize this is not permited by RFC however it is killing the performance on the box.
Please help.


How to prevent Exchange from sending NDR for Domain not found

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.