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Exchange 2007 copying NDRs to administration mailbox

Posted on 2009-12-16
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Hello,
I am currently using Exchange 2007, migrated over from Exchange 2000.  I have a two node CCR cluster with 2 CAS servers in my internal network.  I also have an Edge Transport server on my DMZ.  I'd like to be able to receive copies of the NDR messages to an admin mailbox.  I've come across this article in several places:
http://msmvps.com/blogs/andersonpatricio/archive/2007/07/24/copying-ndrs-to-a-mailbox-in-exchange-server-2007.aspx

However, I do not want to add a postmaster email address as I don't want users to be able to reply to the NDR or receive any unwanted spam email.  I'd like to be able to just forward a copy of the NDR to the mailbox I designate.  This was possible in Exchange 2000 in the SMTP Virtual Server by adding the forwarding address.  Is this scenario possible in Exchange 2007?  I haven't been able to find it.
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Question by:mcascio
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Mestha earned 2000 total points
ID: 26064565
You shouldn't be getting many NDRs if you have the server setup correctly. NDRs from internal users are normally down to typos, and those you shouldn't care about.
External NDRs shouldn't even reach the point of generation on your server. Recipient filtering should be enabled so that emails to non-existent users are dropped at the point of delivery, rather than accepted and NDRd.

There is no equivalent of what you did in Exchange 2000, and Exchange is all the better for it. Spammers abuse NDRs and all you will get is junk and user errors.

Simon.
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by:mcascio
ID: 26064791
thanks Mestha,

I've noticed that since I've decommissioned our old SMTP server, the only NDRs I've seen are a few here and there with typos, as you mentioned.  And all are internal messages.

When you mention dropping non-existent users at the point of delivery, does that correspond to the Recipient Filtering on the Edge server?  Do you recommend checking the "Block messages sent to recipients not in the Globel Address List" checkbox?  Currently I do not have this enabled.
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by:Mestha
ID: 26066682
Yes - block messages to users who do not exist on the Edge server.
I have clients who drop 1000s of messages a day to non-existent users. As it is done at the point of delivery, the bandwidth use is minimal.

Simon
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by:mcascio
ID: 26066944
thanks for the advice, Mestha.
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