You cannot delete a post office until you have moved or deleted all objects that belong to it. However, POA object and the associated POA service are automatically deleted along with the Post Office object.
In the GroupWise Admin console, browse to and click the name of the post office to delete.
Move or delete any resources that still belong to the post office.
See Section 58.4, Moving a Resource and Section 58.6, Deleting a Resource. You must more or delete resources before users, because users who own resources cannot be deleted without assigning a new owner in the same post office.
Move or delete any users that still belong to the post office.
See Section 53.4, Moving GroupWise Accounts and Section 53.14, Removing GroupWise Accounts.
Delete any groups that still belong to the post office.
Delete any libraries that still belong to the post office.
Click More > Delete to delete the post office.
When prompted, click Yes to delete the corresponding post office folder structure.
The post office is deleted from the domain. The POA and DVA services associated with the post office are also deleted.
(Conditional) If applicable, uninstall the POA software.
See the following sections in the GroupWise 2014 R2 Installation Guide: