SMTP NDR Percentage Rate Exchange Server 2003 Enterprise SP2

Posted on 2009-12-31
Last Modified: 2012-08-13
I keep getting these alerts on my Public Folder. How can I check where these NDRs are coming from and to what address they are going to.

The SMTP 1 NDR percentage rate of messages received is 29% which
has exceeded the threshold of 20% for the last 5 consecutive alert interval(s).
Question by:thesurg3on
    LVL 23

    Accepted Solution

    You should be able to track the messages using Message Tracking in ESM. What is sending the messages?

    Author Comment

    I dont know what is sending the messages or where they are going other than to my public folder which as hundreds of main enabled folders. so without the address, i can't track in ESM, so this alert is frustrating.
    LVL 23

    Assisted Solution

    by:Stacy Spear
    You could be in a bind. If you haven't documented on paper or on accounts description field in Active Directory what something is or the name matches the device/computer/service/etc it could be very hard tracking this down. Its return address is most likely the address to the public folder so you could start by doing a track on all messages sent from that address.

    Author Closing Comment

    not the way to determine this issues. diagnostic logging would provide insight which i am turning up.

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