Exchange bandwidth issues

Posted on 2012-08-20
Last Modified: 2012-08-24
ok on Friday night an admin setup a forwarder and accidently created an endless loop creating hundred thousand emails, this wasn't discovered till Monday morning.

Now I resolved the problem with the endless loop and cleared the email queues however it appears our Exchange server is using all our Internet bandwidth, I assume it's trying to process all the missed emails from the weekend.

Now the thing I confused is the queues are not filling up but it still processing alot of emails because the bandwidth is constantly being used, is there somewhere to check this besides the queue in the toolbox?  or do you think I have a different issue?
Question by:mightyquinn889
    LVL 33

    Accepted Solution

    Queue Viewer is your best bet - if Exchange is trying to send emails OR process them, it has to be in the queue.

    Here is what you can run to understand what is choking

    Get-Queue -Server "Hub Server" | FL

    What is it that you see in numbers?

    LVL 23

    Assisted Solution

    by:Malli Boppe
    On the exchange server run exmon and see where all the traffic is coming from.
    LVL 3

    Author Closing Comment

    turns out we were under a backscatter attack spoffing our domain name and sending undeliverables...we blocked all undeliverables from being allowed and stopped issue..

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