If you move a post office from one machine to another, you also need to edit the POA startup file to provide the new location of the post office directory.
Stop the POA for the old post office location if it is still running.
Use an ASCII text editor to edit the POA startup file.
The POA startup file is named with the first 8 characters of the post office name, plus a .poa extension. It is typically located in the directory where the POA software is installed.
Adjust the setting of the /home switch to point to the new location of the post office directory.
Save the POA startup file.
Start the POA for the new post office location. See Starting the POA.
Adjust the link between the post office and the domain. See Adjusting the MTA for a New Location of a Domain or Post Office.