A post office is a collection of user mailboxes and GroupWise objects. Messages are delivered into mailboxes by the Post Office Agent (POA). If the POA is unavailable or very slow, then many messages, even some of a high priority, might not be able to reach the mailboxes of recipients, and would be queued instead. If the situation is not rectified soon, the message queue might get choked, and many critical messages might be lost in the process.  If such ill consequences are to be avoided, then the POA should be constantly monitored. This can be achieved using eG Enterprise that offers a specialized monitoring model to continuously monitor the POA.