Dear Expertise, I have an Exchange 2019 mail solution that includes Edge Servers, Reverse Proxy with WAF, and MSG in our email flow architecture. I’m experiencing an issue where delivery report information is no longer available for external incoming emails in ECP. However, the delivery reports for internal emails are showing correctly. Incoming Email Flow: Internet -> MSG -> Edge Server -> Exchange Server Steps I Have Taken: Verified that message trace in Management Shell shows external incoming mail logs correctly. All incoming external mail statuses do not show in delivery reports in ECP. The servers are fully updated with the latest Cumulative Updates (CU), Security Updates (SU), and hotfixes. The default retention period is set for message logs. Now, I am seeking advice on how to resolve this issue. Is there any specific configuration or troubleshooting step that I may have missed? Could there be any firewall, message tracking, or log retention configurations contributing to this issue? Thank you in advance for your help.

Hi, Welcome to the Microsoft Q&A platform! Here are a few additional things you might consider checking: Ensure that message tracking is enabled on all your Exchange servers. You can verify this by running the following command in the Exchange Management Shell: Get-TransportService | Select-Object Name, MessageTrackingLogEnabled If message tracking is disabled on any server, you can enable it using: Set-TransportService -Identity "ServerName" -MessageTrackingLogEnabled $true Verify that your firewall or reverse proxy is not blocking any necessary ports or protocols required for message tracking logs to be generated and accessed. Ensure that the Edge Server can communicate with the Exchange Server without any restrictions that might affect logging. Double-check the retention settings for message tracking logs. Ensure they are configured to retain logs for a sufficient period to allow for delivery report generation. You can check and set the retention period with: Get-TransportService | Select-Object Name, MessageTrackingLogMaxAge Set-TransportService -Identity "ServerName" -MessageTrackingLogMaxAge 30.00:00:00 Check the event logs on your Exchange servers for any errors or warnings related to message tracking or delivery reports. This can provide additional clues about what might be going wrong.

External Mail Delivery Report Not Available in ECP - Exchange 2019

Dipto Adhikary 0

Dear Expertise,

I have an Exchange 2019 mail solution that includes Edge Servers, Reverse Proxy with WAF, and MSG in our email flow architecture. I’m experiencing an issue where delivery report information is no longer available for external incoming emails in ECP. However, the delivery reports for internal emails are showing correctly.

Incoming Email Flow: Internet -> MSG -> Edge Server -> Exchange Server

Steps I Have Taken:

Verified that message trace in Management Shell shows external incoming mail logs correctly.
All incoming external mail statuses do not show in delivery reports in ECP.
The servers are fully updated with the latest Cumulative Updates (CU), Security Updates (SU), and hotfixes.
The default retention period is set for message logs.

Now, I am seeking advice on how to resolve this issue. Is there any specific configuration or troubleshooting step that I may have missed? Could there be any firewall, message tracking, or log retention configurations contributing to this issue?

Thank you in advance for your help.

Mike Hu-MSFT 4,140 Reputation points Microsoft Vendor

2024-09-23T01:35:55.0366667+00:00

Any updates so far? If you have solved your problem, could you share with us? Maybe it will help more people with similar problems. Don't forget to mark it as answer, this will be easy for other community members to find the useful one.
Mike Hu-MSFT 4,140 Reputation points Microsoft Vendor

2024-09-26T01:19:31.1433333+00:00

Just circling back to check to see how things are going on with this thread. Should you need more help on this, you can feel free to post back.

If the answer is helpful please click on ACCEPT ANSWER as it could help other members of the Microsoft Q&A community who have similar questions and are looking for solutions.

1 answer

Mike Hu-MSFT 4,140 Reputation points Microsoft Vendor

2024-09-18T08:54:39.0433333+00:00
Hi,

Welcome to the Microsoft Q&A platform!

Here are a few additional things you might consider checking:

Ensure that message tracking is enabled on all your Exchange servers. You can verify this by running the following command in the Exchange Management Shell:

Get-TransportService | Select-Object Name, MessageTrackingLogEnabled

If message tracking is disabled on any server, you can enable it using:

Set-TransportService -Identity "ServerName" -MessageTrackingLogEnabled $true

Verify that your firewall or reverse proxy is not blocking any necessary ports or protocols required for message tracking logs to be generated and accessed.

Ensure that the Edge Server can communicate with the Exchange Server without any restrictions that might affect logging.

Double-check the retention settings for message tracking logs. Ensure they are configured to retain logs for a sufficient period to allow for delivery report generation. You can check and set the retention period with:

Get-TransportService | Select-Object Name, MessageTrackingLogMaxAge Set-TransportService -Identity "ServerName" -MessageTrackingLogMaxAge 30.00:00:00

Check the event logs on your Exchange servers for any errors or warnings related to message tracking or delivery reports. This can provide additional clues about what might be going wrong.
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Dipto Adhikary 0 Reputation points

2024-09-30T05:16:54.7933333+00:00

HI @Mike Hu-MSFT

I have checked everything as per your guidance, but everything has set correctly and sharing below:

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.

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

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

Mike Hu-MSFT 4,140 Reputation points Microsoft Vendor

2024-09-30T07:26:39.96+00:00

I want to confirm whether external emails can be successfully received by the recipients. Are all members of the organization unable to receive external emails? Or is it that external emails can be received normally but the delivery report does not show it?

Mike Hu-MSFT 4,140 Reputation points Microsoft Vendor

2024-09-30T07:28:34.21+00:00

If your organization cannot receive external mail, check if there are any transport rules related to external senders or domains that are blocking mail flow.

Dipto Adhikary 0 Reputation points

2024-10-01T09:14:09.3633333+00:00

Hi Mike Hu-MSFT

External emails can successfully received by the recipients but it's not reflect to Delivery Report. Please see the attached screenshot for External mail status in Delivery Report.

I would like to confirm you that the message trace in Management Shell shows external incoming mail logs correctly.

Mike Hu-MSFT 4,140 Reputation points Microsoft Vendor

2024-10-03T08:48:15.8433333+00:00

Management Shell shows that message tracking is enabled. You can run the following command to check the message tracking logs on both servers. This can help you identify where the issue is occurring.

Get-MessageTrackingLog -Recipients recipient@domain.com -Start "10/01/2024 00:00:00" -End "10/03/2024 23:59:59" | Select-Object Timestamp,EventId,Source,Sender,Recipients,MessageSubject

Dipto Adhikary 0 Reputation points

2024-10-03T09:17:45.55+00:00

Hi @Mike Hu-MSFT

I have ran the below command and get full information as expected.

Get-MessageTrackingLog -Recipients recipient@domain.com -Start "10/01/2024 00:00:00" -End "10/03/2024 23:59:59" | Select-Object Timestamp,EventId,Source,Sender,Recipients,MessageSubject

Could you suggest me the proper steps to resolve the issue. And for your clarification, I can provide more information if you need.

Dipto Adhikary 0 Reputation points

2024-10-15T09:14:45.4166667+00:00

@Mike Hu-MSFT

Can you help me to investigate and fix the issue ?
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