Mailbox Access Auditing Configuration

Solution:

1. Enable the Non-Owner Mailbox option from the console.

2. Open the respective wizard and enable the auditing across all the mailboxes.

3. Generate the AllMBlist.txt as per the given instruction after enabling auditing.

4. Place the AllMBList.txt in respective domain folder location and then restart the services.

5. Wait for 15 min to process the data.