Setting Hosting Controller with Post.Office involves three steps.
In Start
menu Programs folder, go to Hosting Controller and click Settings.
In
Settings dialog, click on Mail tab
and checkthe Enabled
check box.
Select
Post.Office from Mail Server drop
down list.
Enter the port number, on which Post.Office is
listening, in Post.Office Port
box.
Click on Servers
Tab, enter the IP of the primary machine where primary HC server is installed
in Primary Server IP box. Click
OK.