Exchange 2007 copying NDRs to administration mailbox

Posted on 2009-12-16
Last Modified: 2013-11-30
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:

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.
Question by:mcascio
    LVL 65

    Accepted Solution

    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.


    Author Comment

    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.
    LVL 65

    Expert Comment

    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.


    Author Comment

    thanks for the advice, Mestha.

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Do You Know the 4 Main Threat Actor Types?

    Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

    Email statistics and Mailbox database quotas You might have an interest in attaining information such as mailbox details, mailbox statistics and mailbox database details from Exchange server. At that point, knowing how to retrieve this information …
    Not sure what the best email signature size is? Are you worried about email signature image size? Follow this best practice guide.
    In this video we show how to create a mailbox database in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Servers >> Data…
    To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Servers >> Certificates…

    758 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    8 Experts available now in Live!

    Get 1:1 Help Now