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Mail Delivery Report Not Available in ECP for Exchange 2019

Moshiur (Moshiur Khan) 40 Reputation points
2024-10-16T04:04:54.01+00:00

I’m experiencing an issue where delivery report information is no longer available for incoming emails in ECP. Occasionally, internal mail information appears in the delivery report, but not consistently. External mail information, however, never shows up.

Our Exchange 2019 environment includes Edge Servers, a Reverse Proxy with WAF, and a Mail Security Gateway in the email flow architecture. I have verified the following:

Verified that message trace in the Management Shell correctly shows both external and internal mail logs.

All servers are up-to-date with the latest Cumulative Updates (CUs), Security Updates (SUs), and hotfixes.

The default retention period for message logs is correctly configured.

Message tracking is enabled on all Exchange servers, and I have shared the configuration details below:
1

I am sharing two screenshots for the delivery report (Internal and External)

For external email: In delivery report show the message has been transferred one server to another server but email store location is not showing.

2

For internal email: in delivery report shows different information at different times.
3

4

What should I check, and what are the possible reasons for this issue? I hope for your guidance to help resolve the problem. 

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Exchange Server
A family of Microsoft client/server messaging and collaboration software.
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  1. Jake Zhang-MSFT 6,220 Reputation points Microsoft Vendor
    2024-10-16T08:11:45.84+00:00

    Hi @Moshiur (Moshiur Khan) ,

    Welcome to the Microsoft Q&A platform!

    Based on your description, you are experiencing issues with delivery report information in ECP. Here are some steps and considerations that may help you diagnose and resolve the issue:

     

    1. Make sure that the delivery report configuration in ECP is set up correctly to display the information you need. Sometimes, settings can be changed inadvertently.
    2. Verify that the account you are using has the required permissions to view internal and external email delivery reports.
    3. Since message tracking is enabled and logs are configured correctly, double-check the log path and make sure that the logs are written to the expected location.
    4. Make sure that the time on all servers is synchronized. Time differences can sometimes cause log correlation issues.
    5. Check if there is any security software on the server that is interfering with the recording or display of delivery reports.
    6. If you have any custom transport agents installed, make sure they are not affecting the generation of delivery reports.
    7. Check the configuration of reverse proxies and WAFs. Make sure they are not blocking or changing traffic in a way that affects delivery reports.
    8. Likewise, check the mail security gateway configuration to make sure it is not interfering with the recording of delivery reports.
    9. Consider resetting the ECP virtual directory. Sometimes, issues with the virtual directory can cause issues with the display of information in ECP.
    10. Try to reproduce the issue while running message tracing in real time to see if you can catch any exceptions.

     

    By following these steps, you should be able to narrow down the cause of the issue and find a solution.

    Please feel free to contact me for any updates. And if this helps, don't forget to mark it as an answer.

    Best,

    Jake Zhang

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