Typically, you create a new post office on a new post office server, but if you need to create a new post office on an existing domain server or post office server, you can do so in the GroupWise Admin console.
In the GroupWise Admin console, click Post Offices, then click New > Post Office.
Use the information that you gathered on the Post Office Worksheet
in the GroupWise 2014 R2 Installation Guide as you fill in the fields.
IMPORTANT:If you are creating the new post office on a server where a post office already exists, you cannot use the default port numbers.
Click OK to create the new post office.