Exchange 2003 Delivery Status Notification Delay

Posted on 2012-08-17
Last Modified: 2012-09-06
I have a client running a server:

  Server 2003, fully patched
  Exchange Server 2003, fully patched

No other services or roles on this server.

Static IP, no RBL listings (verified via and, proper rDNS and PTR records (verified via

There have been no changes to the server, ISP, IP, etc. and over the past week a lot of the users are receiving Exchange Delivery Status Notification, message has been delayed.

Any ideas?
Question by:Yort
    LVL 52

    Accepted Solution

    Is this happening for a certain domain ?
    Did you try to track the message and see if its actually leaving your Organization or not ?
    Any AntiVirus on the server ?
    Does Exchange route emails to external or is there some firewall or gateway server ?

    - Rancy
    LVL 33

    Expert Comment

    What is the NDR that folks are getting?

    Please provide us a copy of one OR remove details of your environment and paste the rest of the NDR.

    LVL 1

    Author Closing Comment

    Gateway was blocking all e-mail.

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