✕
×

Exchange On-Prem Auditing Issues

SM
By Sarah Marshall time 2 min read time Published Sep 30, 2026

Table of Contents

  1. 1.Exchange On-Premises Troubleshooting – Partial Exchange Servers Not Getting Audited:
  2. 1.1.Issue:
  3. 1.2.Cause:
  4. 1.3.Resolution Steps:
  5. 1.4.Step 1: Stop the LDSP Service
  6. 1.5.Expected Result:

Exchange On-Premises Troubleshooting – Partial Exchange Servers Not Getting Audited:

Issue:

Some Exchange On-Premises servers appear as excluded and are not getting audited correctly under Non-Owner Mailbox Auditing.


Cause:

The Exchange servers listed in the following file are considered for Non-Owner Mailbox Auditing:

LDSPInstallationPath\Domain\NonOwnerConfig\MBMapList.txt


If an Exchange server is missing from this file, it will appear as excluded in the Lepide console.


Resolution Steps:

Step 1: Stop the LDSP Service

On the Lepide server:

  • Stop the LDSP Service.

Step 2: Clear the NonOwnerConfig Folder

  • Navigate to:

    LDSPInstallationPath\Domain\NonOwnerConfig

  • Delete all files present inside the folder.


Step 3: Stop LDSP Service on Working Exchange Servers

On the Exchange servers that are currently working/audited:

  • Stop the LDSP service.

Step 4: Clean NonOwn Folder on Affected Exchange Servers
On the affected Exchange servers:

  • Navigate to:

    Windows\LP_LA\NonOwn

  • Perform the following actions:

    • Delete the MBList folder.

    • Delete the MBList file.

    • Remove all additional files and folders inside the NonOwn directory.

Ensure that only the executable (.exe) files remain inside the folder.


Step 5: Start LDSP Service

Return to the Lepide server and

  • Start the LDSP Service.

Step 6: Wait for Configuration Sync

  • Allow approximately 5–10 minutes for the configuration to synchronize across all Exchange servers.


Expected Result:

All Exchange servers should automatically reconfigure and begin appearing correctly under Non-Owner Mailbox Auditing without showing as excluded.