How to Move SMTP Queue Data
Use this procedure to move SMTP queue data.
Procedure
To move SMTP queue data
Start Exchange System Manager: Click Start, point to All Programs, point to Microsoft Exchange, and then click System Manager.
Expand Servers, expand the server you want, expand Protocols, and then expand SMTP.
Right-click the SMTP virtual server whose queue directory you want to move, and then click Properties.
In <SMTP Virtual Server> Properties, click the Messages tab.
The Messages tab
On the Messages tab, under Queue directory, click Browse, and then select a new location for the queue data.