Step 3 - Turn off Mailbox Management Schedule

Select Start > All Programs > Microsoft Exchange > System Manager.

In the left-hand navigation menu, select Administrative Groups > First Administrative Group > Servers. Right-click your server, and selectProperties from the drop-down menu.

Select the Mailbox Management tab within the server Properties window. Select Never Run from the Start Mailbox Management Processdrop-down menu. ClickOK. You have successfully turned off the Mailbox Management schedule.